Re: Organising packages/modules - importing functions from a common.py in a separate directory?
Hi, Hmm, this post on SO seems to suggest that importing from another sibling directory in a package ins't actually possibly in Python without some ugly hacks? http://stackoverflow.com/questions/6323860/sibling-package-imports Did I read the above correctly? Is there another way I can structure my code so that I can run the sync_em.py and sync_pg.py scripts, and they can pull common functions from somewhere? Cheers, Victor On Tuesday, 29 October 2013 12:08:10 UTC+11, Victor Hooi wrote: > Hi, > > > > If I try to use: > > > > from .common.common_foo import setup_foo_logging > > > > I get: > > > > ValueError: Attempted relative import in non-package > > > > And the absolute imports don't seem to be able to find the right modules. > > > > Is it something to do with the fact I'm running the sync_em.py script from > the "foo_loading/em_load" directory? > > > > I thought I could just refer to the full path, and it'd find it, but > evidently not...hmm. > > > > Cheers, > > Victor > > > > On Tuesday, 29 October 2013 12:01:03 UTC+11, Ben Finney wrote: > > > Victor Hooi writes: > > > > > > > > > > > > > Ok, so I should be using absolute imports, not relative imports. > > > > > > > > > > > > I'd say it is fine to use relative imports, so long as they are > > > > > > explicit. (In Python 3, the default for an import is to be absolute, and > > > > > > the *only* way to do a relative import is to make it explicitly > > > > > > relative. So you may as well start doing so now.) > > > > > > > > > > > > > Hmm, I just tried to use absolute imports, and it can't seem to locate > > > > > > > the modules: > > > > > > > > > > > > > > In the file "foo_loading/em_load/sync_em.py", I have: > > > > > > > > > > > > > > from common.common_bex import setup_foo_logging > > > > > > > > > > > > So I'd recommend this be done with an explicit relative import: > > > > > > > > > > > > from .common.common_bex import setup_foo_logging > > > > > > > > > > > > or, better, import a module: > > > > > > > > > > > > from .common import common_bex > > > > > > > > > > > > or a whole package: > > > > > > > > > > > > from . import common > > > > > > > > > > > > -- > > > > > > \ “I went over to the neighbor's and asked to borrow a cup of | > > > > `\ salt. ‘What are you making?’ ‘A salt lick.’” —Steven Wright | > > > > > > _o__) | > > > > > > Ben Finney -- https://mail.python.org/mailman/listinfo/python-list
Re: how to avoid checking the same condition repeatedly ?
On Tue, Oct 29, 2013 at 5:53 PM, Peter Cacioppi wrote: > But this sort of bottleneck refactoring can be done in a careful way that > minimizes the damage to readability. And a strength of py is it tends to > encourage this "as pretty as possible" approach to bottleneck refactoring. > > This is what you're saying, right? Yep, that's about the size of it. Want some examples of what costs no clarity to reimplement in another language? Check out the Python standard library. Some of that is implemented in C (in CPython) and some in Python, and you can't tell and needn't care which. Code clarity isn't hurt, because those functions would be named functions even without. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Organising packages/modules - importing functions from a common.py in a separate directory?
Victor Hooi wrote: > Hi, > > Hmm, this post on SO seems to suggest that importing from another sibling > directory in a package ins't actually possibly in Python without some ugly > hacks? > > http://stackoverflow.com/questions/6323860/sibling-package-imports > > Did I read the above correctly? Yes. > Is there another way I can structure my code so that I can run the > sync_em.py and sync_pg.py scripts, and they can pull common functions from > somewhere? The packages you are trying to access in your original post > foo_loading/ > __init__.py > common/ > common_foo.py > em_load/ > __init__.py > config.yaml > sync_em.py > pg_load/ > __init__.py > config.yaml > sync_pg.py aren't actually siblings in the sense of the stackoverflow topic above, they are subpackages of foo_loading, and as you already found out > So from within the sync_em.py script, I'm trying to import a function from foo_loading/common/common_foo.py. > > from ..common.common_foo import setup_foo_logging > > I get the error: > > ValueError: Attempted relative import in non-package > > If I change directories to the parent of "foo_loading", then run > > python -m foo_loading.em_load.sync_em sync_em.py > > it works. However, this seems a bit roundabout, and I suspect I'm not doing things correctly. > > Ideally, I want a user to be able to just run sync_em.py from it's own directory, and have it correctly import the logging/config modules from common_foo.py, and just work. > > What is the correct way to achieve this? you can access them as long as the *parent* directory of foo_loading is in sys.path through PYTHONPATH, or as the working directory, or any other means. However, if you step into the package, e. g. $ cd foo_loading $ python -c 'import common' then from Python's point of view 'common' is a toplevel package rather than the intended 'foo_loading.common', and intra-package imports will break. To preserve your sanity I therefore recommend that you (1) avoid to put package directories into sys.path (1a) avoid to cd into a package (2) put scripts you plan to invoke directly rather than import outside the package. -- https://mail.python.org/mailman/listinfo/python-list
Re: Curdling: Concurrent package installer for python
On 29/10/2013 02:11, Blaine LaFreniere wrote: Sounds nice. I'll see about checking it out later. Good luck with the project. Since when is making a drink a project? As it happens I don't particularly like tea, so I'll have coffee please, black, no sugar. Or have I made a wrong assumption about your context? -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
Re: Slicing with negative strides
Steven D'Aprano wrote: > Does anyone here use slices (or range/xrange) with negative strides > other than -1? > > E.g. sequence[2:15:-3] With any negative stride your example is just the empty sequence. > > > If so, there is a discussion (long, long, looong discussion) on > the python-ideas mailing list, debating whether or not to deprecate or > change the behaviour of slicing with negative strides. So if you care > about the current behaviour, now is the time to stand up and be > counted. > > (Standing up *here* is fine, don't feel that you have to join yet > another list.) > For those of us that don't really want to join another mailing list, could you summarise what change is being proposed? -- Duncan Booth http://kupuguy.blogspot.com -- https://mail.python.org/mailman/listinfo/python-list
Re: Slicing with negative strides
On 29/10/2013 05:22, Steven D'Aprano wrote: Does anyone here use slices (or range/xrange) with negative strides other than -1? E.g. sequence[2:15:-3] In 10 ish years I don't recall ever considering it, let alone doing it. -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
Re: Organising packages/modules - importing functions from a common.py in a separate directory?
- Original Message - > Hi, > > If I try to use: > > from .common.common_foo import setup_foo_logging > > I get: > > ValueError: Attempted relative import in non-package If you're using python 3, forget what I said about not using relative imports. I think they've implemented the necessary grammar to make it work. Cheers, JM -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. -- https://mail.python.org/mailman/listinfo/python-list
Re: Slicing with negative strides
On 29/10/2013 08:53, Duncan Booth wrote: Steven D'Aprano wrote: Does anyone here use slices (or range/xrange) with negative strides other than -1? E.g. sequence[2:15:-3] With any negative stride your example is just the empty sequence. If so, there is a discussion (long, long, looong discussion) on the python-ideas mailing list, debating whether or not to deprecate or change the behaviour of slicing with negative strides. So if you care about the current behaviour, now is the time to stand up and be counted. (Standing up *here* is fine, don't feel that you have to join yet another list.) For those of us that don't really want to join another mailing list, could you summarise what change is being proposed? Umpteen options have been put forward. IMHO the bookies favourite is currently being endorsed by Tim Peters and Terry Reedy, yours odds may vary :) -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
problem importing
Hi all, So I cloned a package xyz from github. OS is ubuntu 12.04. Then install successfully using "sudo python setup.py install" Now when I try to import xyz, I get "ImportError: No module named xyz" unless my current working directory is in xyz. Appreciate your help. Thanks. -- https://mail.python.org/mailman/listinfo/python-list
Re: Slicing with negative strides
On 10/29/2013 4:53 AM, Duncan Booth wrote: Steven D'Aprano wrote: Does anyone here use slices (or range/xrange) with negative strides other than -1? E.g. sequence[2:15:-3] With any negative stride your example is just the empty sequence. The idea is that one would not have to reverse 2 and 15 to get a non-empty sequence. -- Terry Jan Reedy -- https://mail.python.org/mailman/listinfo/python-list
Re: problem importing
C. Ng wrote: > Hi all, > So I cloned a package xyz from github. OS is ubuntu 12.04. > Then install successfully using "sudo python setup.py install" > Now when I try to import xyz, I get "ImportError: No module named xyz" > unless my current working directory is in xyz. Appreciate your help. > Thanks. Maybe the author called the toplevel package pyxyz or XYZ -- when you don't provide the actual package name/github url we can only guess. Or $ which python and $ sudo which python point to different Python installations. -- https://mail.python.org/mailman/listinfo/python-list
[OT] Re: Python Front-end to GCC
Steven D'Aprano pearwood.info> writes: > > On Fri, 25 Oct 2013 21:36:42 +0100, Mark Lawrence wrote: > > > Mind you, the thought of a bot with a Ph.D. is mind boggling. > > You can buy degrees on the Internet quite cheaply: > > http://en.wikipedia.org/wiki/List_of_animals_with_fraudulent_diplomas > > PhD's are more expensive, which leads me to think that Mark Jenssen is > being a tad flexible with the truth when he claims to have one. He could be an upper-class twit. He would certainly have his chance in the yearly competition ;-) Regards Antoine. -- https://mail.python.org/mailman/listinfo/python-list
Re: Slicing with negative strides
On Tue, 29 Oct 2013 08:53:08 +, Duncan Booth wrote: > Steven D'Aprano wrote: > >> Does anyone here use slices (or range/xrange) with negative strides >> other than -1? >> >> E.g. sequence[2:15:-3] > > With any negative stride your example is just the empty sequence. Gah, sorry about that, that's the suggested *new* syntax. Possibly my subconscious likes it better than my conscious :-) Try this instead: sequence[15:2:-3] >> If so, there is a discussion (long, long, looong discussion) on the >> python-ideas mailing list, debating whether or not to deprecate or >> change the behaviour of slicing with negative strides. So if you care >> about the current behaviour, now is the time to stand up and be >> counted. >> >> (Standing up *here* is fine, don't feel that you have to join yet >> another list.) >> > For those of us that don't really want to join another mailing list, > could you summarise what change is being proposed? * Negative strides should be deprecated and then removed. * Or just deprecated. * Or change the semantics of negative strides so that seq[2:15:-2] works as expected. * Or get rid of negative indexing. * Or add new syntax to control whether or not the end points are included. * Or ... It's Python-Ideas, otherwise known as Bike-Shed Central :-) I think the main idea which is likely (since Guido seems to be slightly leaning that way) is to deprecate negative strides, remove them in a release or three, and then re-introduce them in Python 4000 but with more intuitive semantics. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Possibly better loop construct, also labels+goto important and on the fly compiler idea.
Because it's logical. " What is logical? " To put the exit condition at the bottom is logical. The exit condition glues the loop to the code that will be executed next which is also at the bottom. Example: Loop NextCode ^ Placing the exit ondition near next code makes more sense at least in situation where I was programming. I will give you an example: LoopBegin( Step = 10 ) if ButtonExists then begin ClickButton() end; LoopEnd( ButtonClicked ) Execute next code... This loop waits for the button to appear, once it's found it is clicked and then the loop exits to continue the next code. Putting this exit condition on the top makes no sense. Bye, Skybuck. -- https://mail.python.org/mailman/listinfo/python-list
Help with guessing game :D
Hey guys, so I figured I will give python a shot. I got to exercise that has
asked me to create a number guessing game which weren't a problem,
guessesTaken = 0 #This is a "Guesses taken counter"
print("Hello, what's your name?") #Asking the user to input their name
N = raw_input() #What the user's name is
import random #This is importing the random function
number = random.randint(1, 999) #This tells the random function to generate a
random number between 1 to 1000
print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells
the user their name and tells them that it's thinking of a number betweeen 1 to
1000
while guessesTaken < 10:
print('Take a guess.')
guess = input()
guess = int(guess)
guessesTaken = guessesTaken + 1
if guess < number: #Says that if the guess is too low it will print a
message saying that the guess is too low
print('Your guess is too low.')
if guess > number: #Says that if the guess is too high it will print a
message saying that the guess is too high
print('Your guess is too high.')
if guess == number:
break #Breaks the loop, meaning it will continue to loop for 10 times
while giving them messages from above depending on their results
if guess == number:
guessesTaken = str(guessesTaken)
print("Congrat's, " + N + "! You managed to get the number in " +
guessesTaken + " guesses!") #Tells the user they managed to guess it in x
number of times
if guess != number: #If the user is unable to guess the number in 10 times it
will stop the loop and give the user a message
number = str(number)
print("No, the right number was" + number)
However the problem is that it also asked me to do the following : If at least
one of the digit guessed is right it will say "y" otherwise "n" which I can't
seem to do :/ any help?
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tue, Oct 29, 2013 at 10:45 PM, Robert Gonda wrote: > N = raw_input() #What the user's name is > print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells > the user their name and tells them that it's thinking of a number betweeen 1 > to 1000 > guess = input() > guess = int(guess) Which version of Python are you using? The raw_input call is very Python 2, but you're using print as a function, and then you're converting input()'s result to an integer, both of which suggest Python 3.x. If you're using Python 2, do NOT use input() - it is dangerous, deceptively so. In Python 3, that problem no longer applies. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 11:53:55 UTC, Chris Angelico wrote: > On Tue, Oct 29, 2013 at 10:45 PM, Robert Gonda > > wrote: > > > N = raw_input() #What the user's name is > > > print(N + ", I'm thinking of a number between 1-1000") #Not needed but > > tells the user their name and tells them that it's thinking of a number > > betweeen 1 to 1000 > > > guess = input() > > > guess = int(guess) > > > > Which version of Python are you using? The raw_input call is very > > Python 2, but you're using print as a function, and then you're > > converting input()'s result to an integer, both of which suggest > > Python 3.x. If you're using Python 2, do NOT use input() - it is > > dangerous, deceptively so. In Python 3, that problem no longer > > applies. > > > > ChrisA Hi Chris and thanks for the reply, I'm using python 3. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 11:54:49 UTC, Robert Gonda wrote: > On Tuesday, 29 October 2013 11:53:55 UTC, Chris Angelico wrote: > > > On Tue, Oct 29, 2013 at 10:45 PM, Robert Gonda > > > > > > wrote: > > > > > > > N = raw_input() #What the user's name is > > > > > > > print(N + ", I'm thinking of a number between 1-1000") #Not needed but > > > tells the user their name and tells them that it's thinking of a number > > > betweeen 1 to 1000 > > > > > > > guess = input() > > > > > > > guess = int(guess) > > > > > > > > > > > > Which version of Python are you using? The raw_input call is very > > > > > > Python 2, but you're using print as a function, and then you're > > > > > > converting input()'s result to an integer, both of which suggest > > > > > > Python 3.x. If you're using Python 2, do NOT use input() - it is > > > > > > dangerous, deceptively so. In Python 3, that problem no longer > > > > > > applies. > > > > > > > > > > > > ChrisA > > > > Hi Chris and thanks for the reply, I'm using python 3. Tried to get rid of it but it just gives me an error, that's why I used raw_input -- https://mail.python.org/mailman/listinfo/python-list
Re: Cookie fr*cking problem
On 2013-10-29, Steven D'Aprano wrote: > On Mon, 28 Oct 2013 13:20:17 +, Neil Cerutti wrote: > >> On 2013-10-27, Ben Finney wrote: >>> I have no particular objection to you responding to those >>> instances of bad behaviour that I've omitted. >> >> So you omitted them, eh? >> >> You just omitted the body of the letter, that's all! You've >> left out the body of the letter, that's all. Yours is not to >> reason why, Jamison. You've left out the body of the letter! >> >> ... >> >> Fine. Send it that way, and tell them the body will follow. > > Was that the letter made out to the solicitors Hummerdinger, > Hummerdinger, Hummerdinger, Hummerdinger, and McCormack? As I > recall, not only did the secretary leave out one of the > Hummerdingers, but he left out the most important one. Yep, from, "Animal Crackers." Although I believe it's, "Hunger-Dunger." You were close though. You were close though, and I bet you still are. ;) -- Neil Cerutti -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: >> >> > >> > converting input()'s result to an integer, both of which suggest >> >> if you need to be checking individual digits you are probably best keeping the input & number to be checked as strings. it would then be a trivial task to expand this program to work with words as well as numbers. -- "No one gets too old to learn a new way of being stupid." -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 12:58:09 UTC, Alister wrote: > On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: > > >> > > >> > > > >> > converting input()'s result to an integer, both of which suggest > > >> > > >> > > > > if you need to be checking individual digits you are probably best > > keeping the input & number to be checked as strings. > > > > it would then be a trivial task to expand this program to work with words > > as well as numbers. > > > > > > > > > > -- > > "No one gets too old to learn a new way of being stupid." I see, so how should i do it? I wouldn't mind having no text in it I just need the program to generate the number and the user to try to guess what the number is, so for example if a python would generate num 770 and the user would guess 870 it would say NYN -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tue, 29 Oct 2013 06:03:55 -0700, Robert Gonda wrote: > On Tuesday, 29 October 2013 12:58:09 UTC, Alister wrote: >> On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: >> >> >> >> >> >> >> > >> >> > converting input()'s result to an integer, both of which suggest >> >> >> >> >> >> >> >> >> >> if you need to be checking individual digits you are probably best >> >> keeping the input & number to be checked as strings. >> >> >> >> it would then be a trivial task to expand this program to work with >> words >> >> as well as numbers. >> >> >> >> >> >> >> >> >> >> -- >> >> "No one gets too old to learn a new way of being stupid." > > I see, so how should i do it? I wouldn't mind having no text in it I > just need the program to generate the number and the user to try to > guess what the number is, so for example if a python would generate num > 770 and the user would guess 870 it would say NYN remember that strings are a sequence. they can be used as iterators & sliced in the same way as lists & tuples. -- Let a fool hold his tongue and he will pass for a sage. -- Publilius Syrus -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 13:07:08 UTC, Alister wrote: > On Tue, 29 Oct 2013 06:03:55 -0700, Robert Gonda wrote: > > > > > On Tuesday, 29 October 2013 12:58:09 UTC, Alister wrote: > > >> On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: > > >> > > >> > > >> >> > > >> > > >> >> > > > >> >> > converting input()'s result to an integer, both of which suggest > > >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> > > >> if you need to be checking individual digits you are probably best > > >> > > >> keeping the input & number to be checked as strings. > > >> > > >> > > >> > > >> it would then be a trivial task to expand this program to work with > > >> words > > >> > > >> as well as numbers. > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> -- > > >> > > >> "No one gets too old to learn a new way of being stupid." > > > > > > I see, so how should i do it? I wouldn't mind having no text in it I > > > just need the program to generate the number and the user to try to > > > guess what the number is, so for example if a python would generate num > > > 770 and the user would guess 870 it would say NYN > > > > remember that strings are a sequence. > > they can be used as iterators & sliced in the same way as lists & tuples. > > > > > > > > > > -- > > Let a fool hold his tongue and he will pass for a sage. > > -- Publilius Syrus Now you have confused me completely, sorry im just new to python and just learning everything :) could you perhaps give me an example? or part of the code that's missing? -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On 29/10/2013 11:45, Robert Gonda wrote: As you've already received and responded to advice please could you read, digest and action this https://wiki.python.org/moin/GoogleGroupsPython TIA. -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
Re: how to avoid checking the same condition repeatedly ?
On 2013-10-28, Nobody wrote: > On Mon, 28 Oct 2013 09:50:19 +, Wolfgang Maier wrote: >> So my question is: is there an agreed-upon generally best way >> of dealing with this? > > Yes. Just leave the test inside the loop. > > If you're sufficiently concerned about performance that you're > willing to trade clarity for it, you shouldn't be using Python > in the first place. When you detect a code small, as Wolfgang did, e.g., "I'm repeating the same exact test condition in several places," you should not simply ignore it, even in Python. -- Neil Cerutti -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 13:44:45 UTC, Mark Lawrence wrote: > On 29/10/2013 11:45, Robert Gonda wrote: > > > > As you've already received and responded to advice please could you > > read, digest and action this https://wiki.python.org/moin/GoogleGroupsPython > > > > TIA. > > > > -- > > Python is the second best programming language in the world. > > But the best has yet to be invented. Christian Tismer > > > > Mark Lawrence ah okay, sorry didn't know about that -- https://mail.python.org/mailman/listinfo/python-list
Re: How do I update a virtualenv?
> Where specifically are these instructions that tell you to put the > virtualenv under VCS control? https://devcenter.heroku.com/articles/getting-started-with-python > As you are a Heroku customer (I'm not), would you be willing to > suggest they alter them based on advice from this forum? It's not my job to pretend to be an expert about something I am clearly not. All I would be doing is passing along your perspective on the matter. I presume they have reasonable reasons for doing things the way they do it. It would be better for people expert in VCS issues to discuss this stuff with the Heroku people, who presumably know a thing or two about application deployment, and can give you their perspective on why they use "git push" as a deployment tool. Skip -- https://mail.python.org/mailman/listinfo/python-list
Re: Possibly better loop construct, also labels+goto important and on the fly compiler idea.
On Tue, 29 Oct 2013 12:37:36 +0100, Skybuck Flying wrote: > To put the exit condition at the bottom is logical. > > The exit condition glues the loop to the code that will be executed next > which is also at the bottom. Skybuck, please excuse my question, but have you ever done any programming at all? You don't seem to have any experience with actual programming languages. In a while loop, such as in Python, the test is at the top of the loop because the test is performed at the start of the loop, not the end: while x > 0: do_this() do_that() It would be inappropriate (as well as ugly!) to put the test at the end of the loop, like this: x = 0 while: do_this() do_that() many more lines go here possibly even pages of code until finally, at long last you get to the end where you find the test... x > 0 ... and discover whether or not the while loop was actually entered or not. Similarly with for-loops, the loop condition is at the beginning because it runs at the beginning. This would be silly: for i: body of loop goes here could be many many lines of code even pages of code but eventually, at long last we get to the end, and find out what the first value for i will be in range(100, 110) There is one sort of loop where it makes sense to have the loop condition at the end. Python doesn't have such a loop, but Pascal does: the repeat until loop. Unlike while, repeat until is always executed at least once, so the loop condition isn't tested until the end of the loop: repeat do this do that do something else until x > 0 [...] > LoopBegin( Step = 10 ) > > if ButtonExists then > begin > ClickButton() > end; > > LoopEnd( ButtonClicked ) > > Execute next code... > > This loop waits for the button to appear, once it's found it is clicked > and then the loop exits to continue the next code. What if the button has already appeared before the loop starts? I think that is better written as: # Check the loop condition at the start while the button does not exist: wait a bit # Outside the loop click the button (Although such a loop is called a "busy wait" loop, since it keeps the computer being busy without doing anything useful. There are better ways to do this than a loop.) Even in Pascal, I would use a while loop rather than repeat, but if you insist on using repeat, clicking the button still should go on the outside of the loop: # this is wasteful, since even if the button exists, the loop still # waits a bit, for no good reason repeat wait a bit until the button exists click the button > Putting this exit condition on the top makes no sense. Wait until you actually start programming before deciding what makes sense or doesn't. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tue, 29 Oct 2013 06:10:30 -0700, Robert Gonda wrote: > On Tuesday, 29 October 2013 13:07:08 UTC, Alister wrote: >> On Tue, 29 Oct 2013 06:03:55 -0700, Robert Gonda wrote: >> >> >> >> > On Tuesday, 29 October 2013 12:58:09 UTC, Alister wrote: >> >> >> On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> > >> >> >> > converting input()'s result to an integer, both of which >> >> >> > suggest >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> if you need to be checking individual digits you are probably best >> >> >> >> >> >> keeping the input & number to be checked as strings. >> >> >> >> >> >> >> >> >> >> >> >> it would then be a trivial task to expand this program to work with >> >> >> words >> >> >> >> >> >> as well as numbers. >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> >> >> >> "No one gets too old to learn a new way of being stupid." >> >> >> > >> > I see, so how should i do it? I wouldn't mind having no text in it I >> >> > just need the program to generate the number and the user to try to >> >> > guess what the number is, so for example if a python would generate >> > num >> >> > 770 and the user would guess 870 it would say NYN >> >> >> >> remember that strings are a sequence. >> >> they can be used as iterators & sliced in the same way as lists & >> tuples. >> >> >> >> >> >> >> >> >> >> -- >> >> Let a fool hold his tongue and he will pass for a sage. >> >> -- Publilius Syrus > > Now you have confused me completely, sorry im just new to python and > just learning everything :) could you perhaps give me an example? or > part of the code that's missing? you will probably learn more through trial & error than you will from being given an answer to shine some more light on my advise try the following code="7689" for digit in code: print(digit) does this give you any Ideas on how to proceed? -- If you're right 90% of the time, why quibble about the remaining 3%? -- https://mail.python.org/mailman/listinfo/python-list
Re: Function for the path of the script?
On 2013-10-28, Ben Finney wrote: > Grant Edwards writes: > >> On 2013-10-27, Ben Finney wrote: >> >> > What workflow requires you to know the filename of the module, within >> > the module? >> >> If you have a utility that can be used to do several related things, >> one way to tell that utility which you want to do is with command line >> arguments. > > That's a case for inspecting the command line. > >> For example your utility checks sys.argv[1] for a command or option >> flag. Another way is to give the file multiple names, and check >> sys.argv[0] to see what name you've been invoked under. > > Exactly so. This isn't a use case for finding the filesystem location > of the module. Indeed. I was answering a question about a use case knowing the _filename_, not the path for the file. -- Grant Edwards grant.b.edwardsYow! I wonder if I should at put myself in ESCROW!! gmail.com -- https://mail.python.org/mailman/listinfo/python-list
Re: Function for the path of the script?
On 2013-10-29, Steven D'Aprano wrote: > On Mon, 28 Oct 2013 21:00:39 -0700, rurpy wrote: > >> This was pointed out before but since you said you ignore posts from GG >> you probably missed it, and will probably miss this one too, and thus >> continue to post bad information. >> >> This is a small but illustrative example of why such broad- brush >> filtering is a bad idea. But it is your choice. > [...] > If you don't want to be associated with the typical GG posts, you > have the choice to stop using GG. And just as you make the choice > that the convenience of GG outweighs the annoyance of being filtered, > I expect Grant has made the choice that the convenience of avoiding > unwanted GG posts outweighs the risk of throwing out a useful post or > two. At the time I made that choice there was a significant problem with spam being sent using GG posts. I'm told that the list server attempted to filter out those posts, but those of us who read this via Usenet got the full broadside of ads and scams. Based on the S/N ratio of non-spam GG posts, the choice was pretty obvious. -- Grant Edwards grant.b.edwardsYow! Edwin Meese made me at wear CORDOVANS!! gmail.com -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 14:25:10 UTC, Alister wrote: > On Tue, 29 Oct 2013 06:10:30 -0700, Robert Gonda wrote: > > > > > On Tuesday, 29 October 2013 13:07:08 UTC, Alister wrote: > > >> On Tue, 29 Oct 2013 06:03:55 -0700, Robert Gonda wrote: > > >> > > >> > > >> > > >> > On Tuesday, 29 October 2013 12:58:09 UTC, Alister wrote: > > >> > > >> >> On Tue, 29 Oct 2013 05:05:19 -0700, Robert Gonda wrote: > > >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> >> > > >> > > >> >> > > >> > > >> >> >> > > > >> >> >> > converting input()'s result to an integer, both of which > > >> >> >> > suggest > > >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> >> > > >> > > >> >> > > >> > > >> >> >> > > >> > > >> >> > > >> > > >> >> > > >> >> if you need to be checking individual digits you are probably best > > >> > > >> > > >> >> > > >> >> keeping the input & number to be checked as strings. > > >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> >> it would then be a trivial task to expand this program to work with > > >> > > >> >> words > > >> > > >> > > >> >> > > >> >> as well as numbers. > > >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> > > >> >> > > >> >> -- > > >> > > >> > > >> >> > > >> >> "No one gets too old to learn a new way of being stupid." > > >> > > >> > > >> > > > >> > I see, so how should i do it? I wouldn't mind having no text in it I > > >> > > >> > just need the program to generate the number and the user to try to > > >> > > >> > guess what the number is, so for example if a python would generate > > >> > num > > >> > > >> > 770 and the user would guess 870 it would say NYN > > >> > > >> > > >> > > >> remember that strings are a sequence. > > >> > > >> they can be used as iterators & sliced in the same way as lists & > > >> tuples. > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> -- > > >> > > >> Let a fool hold his tongue and he will pass for a sage. > > >> > > >>-- Publilius Syrus > > > > > > Now you have confused me completely, sorry im just new to python and > > > just learning everything :) could you perhaps give me an example? or > > > part of the code that's missing? > > > > you will probably learn more through trial & error than you will from > > being given an answer > > > > to shine some more light on my advise try the following > > > > code="7689" > > for digit in code: > > print(digit) > > > > does this give you any Ideas on how to proceed? > > > > > > > > -- > > If you're right 90% of the time, why quibble about the remaining 3%? Unfortunately I'm not that sort of person, the way my brain learns is by experimenting, but first I need to know exactly what to write. Then I will play around with it and customize it to my needs, sorry to be such a bother guys :/ and thanks again for your help it's appreciated a lot :) -- https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
Le mardi 29 octobre 2013 06:22:27 UTC+1, Steven D'Aprano a écrit :
> On Mon, 28 Oct 2013 07:01:16 -0700, wxjmfauth wrote:
>
>
>
> > And of course, logically, they are very, very badly handled with the
>
> > Flexible String Representation.
>
>
>
> I'm reminded of Cato the Elder, the Roman senator who would end every
>
> speech, no matter the topic, with "Ceterum censeo Carthaginem esse
>
> delendam" ("Furthermore, I consider that Carthage must be destroyed").
>
>
>
> But at least he had the good grace to present that as an opinion, instead
>
> of repeating a falsehood as if it were a fact.
>
>
>
>
>
>
>
>
>
> --
>
> Steven
--
>>> import timeit
>>> timeit.timeit("a = 'hundred'; 'x' in a")
0.12621293837694095
>>> timeit.timeit("a = 'hundreij'; 'x' in a")
0.26411553466961735
If you are understanding the coding of characters, Unicode
and what this FSR does, it is a child play to produce gazillion
of examples like this.
(Notice the usage of a Dutch character instead of a boring €).
jmf
--
https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
On 2013-10-29 08:38, wxjmfa...@gmail.com wrote:
> >>> import timeit
> >>> timeit.timeit("a = 'hundred'; 'x' in a")
> 0.12621293837694095
> >>> timeit.timeit("a = 'hundreij'; 'x' in a")
> 0.26411553466961735
That reads to me as "If things were purely UCS4 internally, Python
would normally take 0.264... seconds to execute this test, but core
devs managed to optimize a particular (lower 127 ASCII characters
only) case so that it runs in less than half the time."
Is this not what you intended to demonstrate? 'cuz that sounds
like a pretty awesome optimization to me.
-tkc
--
https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
On 29/10/2013 15:38, wxjmfa...@gmail.com wrote:
It's okay folks I'll snip all the double spaced google crap as the
poster is clearly too bone idle to follow the instructions that have
been repeatedly posted here asking for people not to post double spaced
google crap.
Le mardi 29 octobre 2013 06:22:27 UTC+1, Steven D'Aprano a écrit :
On Mon, 28 Oct 2013 07:01:16 -0700, wxjmfauth wrote:
And of course, logically, they are very, very badly handled with the
Flexible String Representation.
I'm reminded of Cato the Elder, the Roman senator who would end every
speech, no matter the topic, with "Ceterum censeo Carthaginem esse
delendam" ("Furthermore, I consider that Carthage must be destroyed").
But at least he had the good grace to present that as an opinion, instead
of repeating a falsehood as if it were a fact.
--
Steven
--
import timeit
timeit.timeit("a = 'hundred'; 'x' in a")
0.12621293837694095
timeit.timeit("a = 'hundreij'; 'x' in a")
0.26411553466961735
If you are understanding the coding of characters, Unicode
and what this FSR does, it is a child play to produce gazillion
of examples like this.
(Notice the usage of a Dutch character instead of a boring €).
jmf
You've stated above that logically unicode is badly handled by the fsr.
You then provide a trivial timing example. WTF???
--
Python is the second best programming language in the world.
But the best has yet to be invented. Christian Tismer
Mark Lawrence
--
https://mail.python.org/mailman/listinfo/python-list
Re: how to avoid checking the same condition repeatedly ?
On Tuesday, October 29, 2013 7:14:51 PM UTC+5:30, Neil Cerutti wrote: > On 2013-10-28, Nobody wrote: > > If you're sufficiently concerned about performance that you're > > willing to trade clarity for it, you shouldn't be using Python > > in the first place. > > > When you detect a code small, as Wolfgang did, e.g., "I'm > repeating the same exact test condition in several places," you > should not simply ignore it, even in Python. Yes It is an agenda of functional programming that such programs should be modularly writeable without loss of performance: http://homepages.inf.ed.ac.uk/wadler/topics/deforestation.html [the trees there include lists] Unfortunately for the imperative programmer, some forms of modularization are simply not conceivable that are natural for functional programmers (or as Steven noted shell-script writers). eg The loop: while pred: statement is simply one unit and cannot be split further. Whereas in a FPL one can write: iterate statement >>> takeWhile pred -- the >>> being analogous to | in bash -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tue, 29 Oct 2013 07:40:20 -0700, Robert Gonda wrote:
>> >>
>> >> remember that strings are a sequence.
>> >> they can be used as iterators & sliced in the same way as lists &
>>
>> >> tuples.
>> >>
>> >> Let a fool hold his tongue and he will pass for a sage.
>>
>>
>> >>
>> >> -- Publilius Syrus
>>
>>
>> >
>> > Now you have confused me completely, sorry im just new to python and
>> > just learning everything :) could you perhaps give me an example? or
>> > part of the code that's missing?
>> you will probably learn more through trial & error than you will from
>> being given an answer
>>
>> to shine some more light on my advise try the following
>>
>> code="7689"
>> for digit in code:
>> print(digit)
>>
>> does this give you any Ideas on how to proceed?
>
> Unfortunately I'm not that sort of person, the way my brain learns is by
> experimenting, but first I need to know exactly what to write. Then I
> will play around with it and customize it to my needs, sorry to be such
> a bother guys :/ and thanks again for your help it's appreciated a lot
> :)
I wont provide the code but i will try to break the problem down into
simple steps (this is the most important skill to develop in programming)
set the number to be guessed
get the user input
step through each digit in the input
compare to the co-responding digit in the number to be guessed
generate the required output
actually let me just expand on my earlier teaser code
does this switch on any light-bulbs for you
data='7865'
guess=input('guess')
for key,digit in enumerate(data):
print digit,guess[key]
--
Watch all-night Donna Reed reruns until your mind resembles oatmeal.
--
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Pickle virtual machines implemented in other languages?
Hi Everyone I was just wondering if anyone had tried to implement a pickle virtual machine in another language? I was thinking that it might make for a nice little form of cross language IPC within a trusted environment. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 8:10:20 PM UTC+5:30, Robert Gonda wrote: > Unfortunately I'm not that sort of person, the way my brain learns is by > experimenting, but first I need to know exactly what to write. Then I will > play > around with it and customize it to my needs, sorry to be such a bother guys > :/ > and thanks again for your help it's appreciated a lot :) D o n 't w o r r y R o b e r t In case you did not get the gist of https://wiki.python.org/moin/GoogleGroupsPython (which is a it verbose) your posts come to us like the above. Just keep a line of context and trim off the rest a n d y o u s h o u l d b e f i n e -- https://mail.python.org/mailman/listinfo/python-list
Re: Pickle virtual machines implemented in other languages?
On 10/29/13 12:12 PM, Patrick wrote: Hi Everyone I was just wondering if anyone had tried to implement a pickle virtual machine in another language? I was thinking that it might make for a nice little form of cross language IPC within a trusted environment. Pickle can execute class constructors, which is what makes it insecure. But this also means that you need to have the class definitions on the receiving end, which means the receiving end must be in Python. Unless you special-case some set of Python classes and their equivalents in the other language, you are limited to the primitive builtins like string, dict, list, float, etc. In that case, you might as well just use json as your transport format. --Ned. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 16:24:57 UTC, rusi wrote: > On Tuesday, October 29, 2013 8:10:20 PM UTC+5:30, Robert Gonda wrote: > > > > > Unfortunately I'm not that sort of person, the way my brain learns is by > > > experimenting, but first I need to know exactly what to write. Then I will > > play > > > around with it and customize it to my needs, sorry to be such a bother guys > > :/ > > > and thanks again for your help it's appreciated a lot :) > > > > D > > o > > n > > 't > > > > w > > o > > r > > r > > y > > > > R > > o > > b > > e > > r > > t > > > > In case you did not get the gist of > > https://wiki.python.org/moin/GoogleGroupsPython > > (which is a it verbose) > > your posts come to us like the above. > > Just keep a line of context and trim off the rest > > a > > n > > d > > > > y > > o > > u > > > > s > > h > > o > > u > > l > > d > > > > b > > e > > > > f > > i > > n > > e > > I honestly don't get it? this any better? ;D -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 10:01:38 PM UTC+5:30, Robert Gonda wrote: > > > I honestly don't get it? this any better? ;D In google groups you will see a small 'show quoted text' Click it you will see what a cascading avalanche of mess is produced. Yes GG is stupid, not you. But if you use it (as many of us here do) you are expected to compensate for that stupidity -- https://mail.python.org/mailman/listinfo/python-list
stacked decorators and consolidating
I've got some decorators that work fine as such: @dec1(args1) @dec2(args2) @dec3(args3) def myfun(...): pass However, I used that sequence quite a bit, so I figured I could do something like dec_all = dec1(args1)(dec2(args2)(dec3(args3))) to consolidate the whole mess down to @dec_all def myfun(...): pass However, this yields different (test-breaking) results. Messing around, I found that if I write it as dec_all = lambda fn: dec1(args1)(dec2(args2)(dec3(args3)(fn))) it works and passes all preexisting tests. What am I missing that would cause this difference in behavior? -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: Running Python programmes
Maybe you're inadvertently running Python with either the '-i' switch or with the PYTHONINSPECT environment variable set? When you do that, your script will launch an interactive prompt after it completes. C:\Python27>echo print "hello" > hello.py C:\Python27>python hello.py hello C:\Python27>python -i hello.py hello >>> >>> ^Z C:\Python27>set PYTHONINSPECT=1 C:\Python27>python hello.py hello >>> >>> ^Z -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 16:40:01 UTC, rusi wrote: > On Tuesday, October 29, 2013 10:01:38 PM UTC+5:30, Robert Gonda wrote: > > > > > > > I honestly don't get it? this any better? ;D > > > > In google groups you will see a small 'show quoted text' > > Click it you will see what a cascading avalanche of mess is produced. > > > > > > Yes GG is stupid, not you. But if you use it (as many of us here do) you are > expected to compensate for that stupidity > Is this better then? -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 10:35:52 PM UTC+5:30, Robert Gonda wrote: > > Is this better then? By a bit. For most here not enough Open the 'show quoted text' in your last post it shows like so [Ive replaced '>' by '&' so GG will show it & On Tuesday, October 29, 2013 10:01:38 PM UTC+5:30, Robert Gonda wrote: & & & & > > > I honestly don't get it? this any better? ;D & & & & In google groups you will see a small 'show quoted text' & & Click it you will see what a cascading avalanche of mess is produced. & & & & & & Yes GG is stupid, not you. But if you use it (as many of us here do) you are expected to compensate for that stupidity Now the actual content and what people expect to see is the following & On Tuesday, October 29, 2013 10:01:38 PM UTC+5:30, Robert Gonda wrote: & & > > > I honestly don't get it? this any better? ;D & & In google groups you will see a small 'show quoted text' & Click it you will see what a cascading avalanche of mess is produced. & Yes GG is stupid, not you. But if you use it (as many of us here do) you are expected to compensate for that stupidity -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On 2013-10-29, Alister wrote:
> set the number to be guessed
> get the user input
> step through each digit in the input
> compare to the co-responding digit in the number to be guessed
> generate the required output
>
> actually let me just expand on my earlier teaser code
>
> does this switch on any light-bulbs for you
>
> data='7865'
> guess=input('guess')
> for key,digit in enumerate(data):
> print digit,guess[key]
I just want to add that this programming exercise, while pretty
common, stinks.
A new programmer shouldn't be embroiled in the morass of
interactive programming.
--
Neil Cerutti
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On 10/29/2013 05:45 AM, Robert Gonda wrote:
> Hey guys, so I figured I will give python a shot. I got to exercise that has
> asked me to create a number guessing game which weren't a problem,
> guessesTaken = 0 #This is a "Guesses taken counter"
> print("Hello, what's your name?") #Asking the user to input their name
> N = raw_input() #What the user's name is
> import random #This is importing the random function
> number = random.randint(1, 999) #This tells the random function to generate a
> random number between 1 to 1000
> print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells
> the user their name and tells them that it's thinking of a number betweeen 1
> to 1000
> while guessesTaken < 10:
> print('Take a guess.')
> guess = input()
> guess = int(guess)
> guessesTaken = guessesTaken + 1
> if guess < number: #Says that if the guess is too low it will print a
> message saying that the guess is too low
> print('Your guess is too low.')
> if guess > number: #Says that if the guess is too high it will print a
> message saying that the guess is too high
> print('Your guess is too high.')
> if guess == number:
> break #Breaks the loop, meaning it will continue to loop for 10 times
> while giving them messages from above depending on their results
> if guess == number:
> guessesTaken = str(guessesTaken)
> print("Congrat's, " + N + "! You managed to get the number in " +
> guessesTaken + " guesses!") #Tells the user they managed to guess it in x
> number of times
> if guess != number: #If the user is unable to guess the number in 10 times it
> will stop the loop and give the user a message
> number = str(number)
> print("No, the right number was" + number)
>
> However the problem is that it also asked me to do the following : If at
> least one of the digit guessed is right it will say "y" otherwise "n" which I
> can't seem to do :/ any help?
and
On 10/29/2013 08:25 AM, Alister wrote:
> On Tue, 29 Oct 2013 06:10:30 -0700, Robert Gonda wrote:
>[...]
>> Now you have confused me completely, sorry im just new to python and
>> just learning everything :) could you perhaps give me an example? or
>> part of the code that's missing?
>
> you will probably learn more through trial & error than you will from
> being given an answer
While this is true for some people sometimes, I don't think
it is always true. Very often it is easier and faster to
learn something be seeing a worked out example and studying
it to see how it works. This is especially true when one
is new to a programming language and doesn't have a good
understanding of the terminology and concepts that people
who have been using the language take for granted.
> to shine some more light on my advise try the following
>
> code="7689"
> for digit in code:
> print(digit)
>
> does this give you any Ideas on how to proceed?
Robert, please see if this is what you were trying to do:
-
guessesTaken = 0 #This is a "Guesses taken counter"
print("Hello, what's your name?") #Asking the user to input their name
N = input() #What the user's name is
import random #This is importing the random function
number = random.randint(1, 999) #This tells the random function to generate a
random number between 1 to 1000
number_str = str (number) # Convert 'guess' to a string of digits.
while len (number_str) < 3: # If there are less than 3 digits, add leading
"0"s until it is three digits.
number_str = "0" + number_str
print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells
the user their name and tells them that it's thinking of a number betweeen 1 to
1000
while guessesTaken < 10:
print('Take a guess.')
guess = input()
guess = int(guess)
guessesTaken = guessesTaken + 1
if guess < number: #Says that if the guess is too low it will print a
message saying that the guess is too low
print('Your guess is too low.')
if guess > number: #Says that if the guess is too high it will print a
message saying that the guess is too high
print('Your guess is too high.')
if guess == number:
break #Breaks the loop, meaning it will continue to loop for 10 times
while giving them messages from above depending on their results
guess_str = str (guess) # Convert 'guess' to a string of digits.
while len (guess_str) < 3: # If there are less than 3 digits, add leading
"0"s until it is three digits.
guess_str = "0" + guess_str
if len (guess_str) > 3: guess_str = guess_str[-2:] # Make sure it is no
longer than 3 digits.
# Here, we know that 'number_str' is exactly 3 digits. 'guess_str' is at
least
# 3 digits but could be more if the user entered, for example, 34567.
print ("digits matched: ", end='')
for i in range (2, -1, -1):
# 'i' will have the values, 2, 1, 0.
if guess_str[i] == number_str[i]: print ("Y",
Re: Help with guessing game :D
On Tuesday, October 29, 2013 10:52:04 PM UTC+5:30, Neil Cerutti wrote: > I just want to add that this programming exercise, while pretty > common, stinks. > > A new programmer shouldn't be embroiled in the morass of > interactive programming. Cheers to that! If the 'print' statement were called a 'debug' statement, then it would be more clear that a clean and correct program should have no debug (ie print) statements. -- https://mail.python.org/mailman/listinfo/python-list
Re: stacked decorators and consolidating
On 29/10/2013 16:54, Tim Chase wrote: I've got some decorators that work fine as such: @dec1(args1) @dec2(args2) @dec3(args3) def myfun(...): pass However, I used that sequence quite a bit, so I figured I could do something like dec_all = dec1(args1)(dec2(args2)(dec3(args3))) to consolidate the whole mess down to @dec_all def myfun(...): pass However, this yields different (test-breaking) results. Messing around, I found that if I write it as dec_all = lambda fn: dec1(args1)(dec2(args2)(dec3(args3)(fn))) it works and passes all preexisting tests. What am I missing that would cause this difference in behavior? If you apply the stacked decorators you get: myfun = dec1(args1)(dec2(args2)(dec3(args3)(myfun))) If you apply dec_all you get: myfun = dec1(args1)(dec2(args2)(dec3(args3)))(myfun) See the difference? You need the lambda to fix that. -- https://mail.python.org/mailman/listinfo/python-list
First day beginner to python, add to counter after nested loop
I have a 25 row javascript that i try to convert to python to get into the
language but i run into problem i do not understand howto reach outer loop
after finnish inner loop, in fact i do not understand when finished. The
javascript i try to conver is below.
#!/usr/bin/python
import math
# Function definition is here
def sq(number):
square=1;
factor=2;
exponent=2;
print(x,"= ");
while (number>3):
while (square<=number):
factor+=1;
square=math.pow(factor,exponent);
now i want to add conter when loop finished, no end like basic
??? factor--;
??? print(factor," ");
??? square=math.pow(factor,exponent);
??? number=number-(factor*factor);
??? square=1;
??? factor=1;
---here does second loop finish
return
print("Exp=x^2");
for x in range (22,23):
sq(x);
Here is the javascript with loop i try to convert.
TEST
function sq(number){
square=1;
factor=2;
exponent=2;
document.write(x,"= ");
while (number>3){
while (square<=number)
{ factor++;
square=Math.pow(factor,exponent);
}
factor--;
document.write(factor," ");
square=Math.pow(factor,exponent);
number=number-(factor*factor);
square=1;
factor=1;
}
document.write("+",number,"
");
}
document.write("Exp=x^2
");
for (x=1;x<100;x++){
sq(x);
}
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 5:24:08 PM UTC, ru...@yahoo.com wrote:
> On 10/29/2013 05:45 AM, Robert Gonda wrote:
>
> > Hey guys, so I figured I will give python a shot. I got to exercise that
> > has asked me to create a number guessing game which weren't a problem,
>
> > guessesTaken = 0 #This is a "Guesses taken counter"
>
> > print("Hello, what's your name?") #Asking the user to input their name
>
> > N = raw_input() #What the user's name is
>
> > import random #This is importing the random function
>
> > number = random.randint(1, 999) #This tells the random function to generate
> > a random number between 1 to 1000
>
> > print(N + ", I'm thinking of a number between 1-1000") #Not needed but
> > tells the user their name and tells them that it's thinking of a number
> > betweeen 1 to 1000
>
> > while guessesTaken < 10:
>
> > print('Take a guess.')
>
> > guess = input()
>
> > guess = int(guess)
>
> > guessesTaken = guessesTaken + 1
>
> > if guess < number: #Says that if the guess is too low it will print a
> > message saying that the guess is too low
>
> > print('Your guess is too low.')
>
> > if guess > number: #Says that if the guess is too high it will print a
> > message saying that the guess is too high
>
> > print('Your guess is too high.')
>
> > if guess == number:
>
> > break #Breaks the loop, meaning it will continue to loop for 10
> > times while giving them messages from above depending on their results
>
> > if guess == number:
>
> > guessesTaken = str(guessesTaken)
>
> > print("Congrat's, " + N + "! You managed to get the number in " +
> > guessesTaken + " guesses!") #Tells the user they managed to guess it in x
> > number of times
>
> > if guess != number: #If the user is unable to guess the number in 10 times
> > it will stop the loop and give the user a message
>
> > number = str(number)
>
> > print("No, the right number was" + number)
>
> >
>
> > However the problem is that it also asked me to do the following : If at
> > least one of the digit guessed is right it will say "y" otherwise "n" which
> > I can't seem to do :/ any help?
>
>
>
> and
>
>
>
> On 10/29/2013 08:25 AM, Alister wrote:
>
> > On Tue, 29 Oct 2013 06:10:30 -0700, Robert Gonda wrote:
>
> >[...]
>
> >> Now you have confused me completely, sorry im just new to python and
>
> >> just learning everything :) could you perhaps give me an example? or
>
> >> part of the code that's missing?
>
> >
>
> > you will probably learn more through trial & error than you will from
>
> > being given an answer
>
>
>
> While this is true for some people sometimes, I don't think
>
> it is always true. Very often it is easier and faster to
>
> learn something be seeing a worked out example and studying
>
> it to see how it works. This is especially true when one
>
> is new to a programming language and doesn't have a good
>
> understanding of the terminology and concepts that people
>
> who have been using the language take for granted.
>
>
>
> > to shine some more light on my advise try the following
>
> >
>
> > code="7689"
>
> > for digit in code:
>
> > print(digit)
>
> >
>
> > does this give you any Ideas on how to proceed?
>
>
>
> Robert, please see if this is what you were trying to do:
>
>
>
> -
>
> guessesTaken = 0 #This is a "Guesses taken counter"
>
> print("Hello, what's your name?") #Asking the user to input their name
>
> N = input() #What the user's name is
>
> import random #This is importing the random function
>
> number = random.randint(1, 999) #This tells the random function to generate a
> random number between 1 to 1000
>
>
>
> number_str = str (number) # Convert 'guess' to a string of digits.
>
> while len (number_str) < 3: # If there are less than 3 digits, add leading
> "0"s until it is three digits.
>
> number_str = "0" + number_str
>
>
>
> print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells
> the user their name and tells them that it's thinking of a number betweeen 1
> to 1000
>
> while guessesTaken < 10:
>
> print('Take a guess.')
>
> guess = input()
>
> guess = int(guess)
>
> guessesTaken = guessesTaken + 1
>
> if guess < number: #Says that if the guess is too low it will print a
> message saying that the guess is too low
>
> print('Your guess is too low.')
>
> if guess > number: #Says that if the guess is too high it will print a
> message saying that the guess is too high
>
> print('Your guess is too high.')
>
> if guess == number:
>
> break #Breaks the loop, meaning it will continue to loop for 10 times
> while giving them messages from above depending on their results
>
>
>
> guess_str = str (guess) # Convert 'guess' to a string of digits.
>
> while len (guess_str) < 3: # If there are less tha
RELEASED: Python 2.6.9 final
Hello Pythoneers and Pythonistas, Five years ago this month, we released Python 2.6. It was an important version in Python's evolution, as it was developed in tandem with Python 3.0 and had the express intent of starting the transition toward Python 3. Amazingly, here we are five years later, and I am happy (and a little sad) to announce the Python 2.6.9 final release. Python 2.6.9 is a security-only source-only release, and with this, I officially retire the Python 2.6 branch. All maintenance of Python 2.6, including for security issues, has now ended. So too has my latest stint as Python Release Manager. Over the 19 years I have been involved with Python, I've been honored, challenged, stressed, and immeasurably rewarded by managing several Python releases. I wish I could thank each of you individually for all the support you've generously given me in this role. You deserve most of the credit for all these great releases; I'm just a monkey pushing buttons. :) Here then are some release notes about 2.6.9. For ongoing maintenance, please see Python 2.7. Future issues with Python 2.6 may still be tracked in the Python bug tracker, and you may wish to visit specific issues to see if unofficial patches are available for 2.6. http://bugs.python.org The source can be downloaded from: http://www.python.org/download/releases/2.6.9/ You can also see what's changed since Python 2.6.8: http://www.python.org/download/releases/2.6.9/NEWS.txt Users on OS X 10.9 (Mavericks) please note that issue 18458, which can crash the interactive interpreter, is *not* fixed in 2.6.9. If this issue affects you, please review the tracker for possible options: http://bugs.python.org/issue18458 Enjoy, -Barry (on behalf of the Python development community) signature.asc Description: PGP signature -- https://mail.python.org/mailman/listinfo/python-list
Re: stacked decorators and consolidating
Tim Chase wrote: > I've got some decorators that work fine as such: > > @dec1(args1) > @dec2(args2) > @dec3(args3) > def myfun(...): > pass > > However, I used that sequence quite a bit, so I figured I could do > something like > > dec_all = dec1(args1)(dec2(args2)(dec3(args3))) With these shortcuts a = dec1(args1) b = dec2(args2) c = dec3(args3) to make it look less messy your first attempt is dec_all = a(b(c)) and the final decorated function will be a(b(c))(myfun) when it should be a(b(c(myfun))) i. e. instead of decorating myfun three times you are decorating the decorator c twice and then use the result of that decoration to decorate myfunc. Does that help? I have my doubts ;) > to consolidate the whole mess down to > > @dec_all > def myfun(...): > pass > > However, this yields different (test-breaking) results. Messing > around, I found that if I write it as > > dec_all = lambda fn: dec1(args1)(dec2(args2)(dec3(args3)(fn))) > > it works and passes all preexisting tests. > > What am I missing that would cause this difference in behavior? > > -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 10:54:08 PM UTC+5:30, ru...@yahoo.com wrote: > Also, what Mark and Rusi were trying to say (not very clearly) > is that when you post from Google Groups, Google Groups insert > a lot of empty lines in the ">" the at the top of the message. So from the most recent post do you infer that your explanations were successful in creating some understanding? -- https://mail.python.org/mailman/listinfo/python-list
Re: stacked decorators and consolidating
On 2013-10-29 17:42, MRAB wrote: > If you apply the stacked decorators you get: > > myfun = dec1(args1)(dec2(args2)(dec3(args3)(myfun))) > > If you apply dec_all you get: > > myfun = dec1(args1)(dec2(args2)(dec3(args3)))(myfun) > > See the difference? You need the lambda to fix that. In this case, they happen to be CherryPy decorators: @cherrypy.expose() @cherrypy.tools.json_in() @cherrypy.tools.json_out() def myfunc(...): pass I'd have figured they would be associative, making the result end up the same either way, but apparently not. Thanks for helping shed some light on the subtle difference. -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 17:52:15 UTC, rusi wrote: > On Tuesday, October 29, 2013 10:54:08 PM UTC+5:30, ru...@yahoo.com wrote: > > > Also, what Mark and Rusi were trying to say (not very clearly) > > > is that when you post from Google Groups, Google Groups insert > > > a lot of empty lines in the ">" the at the top of the message. > > > > So from the most recent post do you infer that your explanations were > successful in creating some understanding? > >While of course it has, the bottom line is once I get it to work I will be > >able to experiment with it, I'm new to this and while you might not think > >this is a good way to learn i have been thought like this all my life (as > >far as I can remember) so it's not so easy for me when I don't even know > >where or have to begin and I don't mean to sound offensive. Thank you for > >your reply sir. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 11:45:39 UTC, Robert Gonda wrote:
> Hey guys, so I figured I will give python a shot. I got to exercise that has
> asked me to create a number guessing game which weren't a problem,
>
> guessesTaken = 0 #This is a "Guesses taken counter"
>
> print("Hello, what's your name?") #Asking the user to input their name
>
> N = raw_input() #What the user's name is
>
> import random #This is importing the random function
>
> number = random.randint(1, 999) #This tells the random function to generate a
> random number between 1 to 1000
>
> print(N + ", I'm thinking of a number between 1-1000") #Not needed but tells
> the user their name and tells them that it's thinking of a number betweeen 1
> to 1000
>
> while guessesTaken < 10:
>
> print('Take a guess.')
>
> guess = input()
>
> guess = int(guess)
>
> guessesTaken = guessesTaken + 1
>
> if guess < number: #Says that if the guess is too low it will print a
> message saying that the guess is too low
>
> print('Your guess is too low.')
>
> if guess > number: #Says that if the guess is too high it will print a
> message saying that the guess is too high
>
> print('Your guess is too high.')
>
> if guess == number:
>
> break #Breaks the loop, meaning it will continue to loop for 10 times
> while giving them messages from above depending on their results
>
> if guess == number:
>
> guessesTaken = str(guessesTaken)
>
> print("Congrat's, " + N + "! You managed to get the number in " +
> guessesTaken + " guesses!") #Tells the user they managed to guess it in x
> number of times
>
> if guess != number: #If the user is unable to guess the number in 10 times it
> will stop the loop and give the user a message
>
> number = str(number)
>
> print("No, the right number was" + number)
>
>
>
> However the problem is that it also asked me to do the following : If at
> least one of the digit guessed is right it will say "y" otherwise "n" which I
> can't seem to do :/ any help?
> Back to question, name is also not working, I currently have python 3.3.2 and
> the only to get that work is the write raw_input, I have no idea why, did i
> do soemthing wrong?
--
https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
On 2013-10-29, jonas.thornv...@gmail.com wrote:
> I have a 25 row javascript that i try to convert to python to get into the
> language but i run into problem i do not understand howto reach outer loop
> after finnish inner loop, in fact i do not understand when finished. The
> javascript i try to conver is below.
>
> #!/usr/bin/python
> import math
> # Function definition is here
> def sq(number):
>
>square=1;
>factor=2;
>exponent=2;
>print(x,"= ");
>while (number>3):
> while (square<=number):
>factor+=1;
>square=math.pow(factor,exponent);
>now i want to add conter when loop finished, no end like basic
>??? factor--;
>??? print(factor," ");
>??? square=math.pow(factor,exponent);
>??? number=number-(factor*factor);
>??? square=1;
>??? factor=1;
>---here does second loop finish
> return
>
> print("Exp=x^2");
> for x in range (22,23):
> sq(x);
>
>
>
> Here is the javascript with loop i try to convert.
Output:
7 = 2 + 3
number square factor exponent
7 1 2 2
9 3
3 1 1
>
>
>TEST
>
> function sq(number){
>square=1;
>factor=2;
>exponent=2;
>document.write(x,"= ");
>while (number>3) {
> while (square<=number) {
>factor++;
>square=Math.pow(factor,exponent);
> }
> factor--;
> document.write(factor," ");
> square=Math.pow(factor,exponent);
> number=number-(factor*factor);
> square=1;
> factor=1;
> }
> document.write("+",number,"
");
> }
> document.write("Exp=x^2
");
> for (x=1;x<100;x++){
> sq(x);
> }
>
>
>
>
What on does function sq do? Squank? Squarp? Squijel?
For number 7, I'm thinking I get output:
7 = 2 + 3
--
Neil Cerutti
--
https://mail.python.org/mailman/listinfo/python-list
Re: Possibly better loop construct, also labels+goto important and on the fly compiler idea.
Bernhard Schornak replied to a "Flying-Bucket-post": Methink we all know about the often not-so-logical ideas from Buck, they merely come from an abstracted view and are far away from todays hardware given opportunities. OTOH, I sometimes got to think about his weird ideas, but mainly figured that his demands are already covered by hardware but may not have entered his Delphi/Python-HLL-world yet. Most of the asked features may be found implemented in the C/C+- area even just as intrisincs since a while anyway now. __ wolfgang (for those who dont know: I'm a purist machine code programmer since more than 35 years) -- https://mail.python.org/mailman/listinfo/python-list
Re: RELEASED: Python 2.6.9 final
On 2013-10-29 13:48, Barry Warsaw wrote: > All maintenance of Python 2.6, including for security issues, has > now ended. > > So too has my latest stint as Python Release Manager. I'm sorry to see you step down, but am thankful for your many years of solid work. Wishing you the best, -tkc -- https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
Den tisdagen den 29:e oktober 2013 kl. 19:09:03 UTC+1 skrev Neil Cerutti:
> On 2013-10-29, jonas.thornv...@gmail.com wrote:
>
> > I have a 25 row javascript that i try to convert to python to get into the
> > language but i run into problem i do not understand howto reach outer loop
> > after finnish inner loop, in fact i do not understand when finished. The
> > javascript i try to conver is below.
>
> >
>
> > #!/usr/bin/python
>
> > import math
>
> > # Function definition is here
>
> > def sq(number):
>
> >
>
> >square=1;
>
> >factor=2;
>
> >exponent=2;
>
> >print(x,"= ");
>
> >while (number>3):
>
> > while (square<=number):
>
> >factor+=1;
>
> >square=math.pow(factor,exponent);
>
> >now i want to add conter when loop finished, no end like basic
>
> >??? factor--;
>
> >??? print(factor," ");
>
> >??? square=math.pow(factor,exponent);
>
> >??? number=number-(factor*factor);
>
> >??? square=1;
>
> >??? factor=1;
>
> >---here does second loop finish
>
> > return
>
> >
>
> > print("Exp=x^2");
>
> > for x in range (22,23):
>
> > sq(x);
>
> >
>
> >
>
> >
>
> > Here is the javascript with loop i try to convert.
>
>
>
> Output:
>
> 7 = 2 + 3
>
> number square factor exponent
>
> 7 1 2 2
>
> 9 3
>
> 3 1 1
>
>
>
> >
>
> >
>
> >TEST
>
> >
>
> > function sq(number){
>
> >square=1;
>
> >factor=2;
>
> >exponent=2;
>
> >document.write(x,"= ");
>
> >while (number>3) {
>
> > while (square<=number) {
>
> >factor++;
>
> >square=Math.pow(factor,exponent);
>
> > }
>
> > factor--;
>
> > document.write(factor," ");
>
> > square=Math.pow(factor,exponent);
>
> > number=number-(factor*factor);
>
> > square=1;
>
> > factor=1;
>
> > }
>
> > document.write("+",number,"
");
>
> > }
>
> > document.write("Exp=x^2
");
>
> > for (x=1;x<100;x++){
>
> > sq(x);
>
> > }
>
> >
>
> >
>
> >
>
> >
>
>
>
> What on does function sq do? Squank? Squarp? Squijel?
>
>
>
> For number 7, I'm thinking I get output:
>
>
>
> 7 = 2 + 3
>
>
>
> --
>
> Neil Cerutti
It write out numbers on modular? square form, just copy past the HTML embedded
javascript into text, save as HTML run i brower and you see.
Decimal base
1234=1000+200+30+4 i bad at terminiology but let us call modular base 10 form.
The script convert to modular square form number and write out.
1234= 35 3 +0
35^2 + 3^3 = 1225 + 9 =1234
It is very basic
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 11:52:15 AM UTC-6, rusi wrote: > On Tuesday, October 29, 2013 10:54:08 PM UTC+5:30, ru...@yahoo.com wrote: > > Also, what Mark and Rusi were trying to say (not very clearly) > > is that when you post from Google Groups, Google Groups insert > > a lot of empty lines in the ">" the at the top of the message. > So from the most recent post do you infer that your explanations > were successful in creating some understanding? I have been suitably chastened and will have more respect for a variety of approaches in the future. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 11:45:56 AM UTC-6, Robert Gonda wrote:
> Thank you very much for your reply, however it gives me an error,
> something about the "end", do you know whats wrong with it?
> (Still not sure if im posting this right so sorry)
"...an error, something about the 'end'" is not much to go on. :-)
Most of the time, when there is an error in a python program,
Python will print "traceback" error message. When asking for
help please copy and paste those lines in your post. Without
that it is just a guessing game for anyone to try and figure
out what is wrong.
Did perhaps your traceback message look like this?
File "xx3.py", line 28
print ("digits matched: ", end='')
^
If so, you are running your program with python2, not python3.
So you need to either figure out how to run python3 (does entering
the command "python3" do anything?) or change the program to work
with python2.
If the error message was different than above, you need to post
it here if people are to have any chance of helping you figure
out what is wrong.
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 11:56:28 PM UTC+5:30, ru...@yahoo.com wrote: > On Tuesday, October 29, 2013 11:52:15 AM UTC-6, rusi wrote: > > On Tuesday, October 29, 2013 10:54:08 PM UTC+5:30, ru...@yahoo.com wrote: > > > Also, what Mark and Rusi were trying to say (not very clearly) > > > is that when you post from Google Groups, Google Groups insert > > > a lot of empty lines in the ">" the at the top of the message. > > > > So from the most recent post do you infer that your explanations > > were successful in creating some understanding? > > > I have been suitably chastened and will have more respect for a variety > of approaches in the future. Heh! Dont be hard on yourself! When youve been a teacher long enough you will know - communication is the exception* - misunderstanding is quite ok - non-understanding is the norm * Yeah Fr. Thomas Keating talks about the fact that he prefers communion to communication. Hopefully when I go to heaven I'll find out how the admin there is so efficient -- https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
Den tisdagen den 29:e oktober 2013 kl. 19:23:28 UTC+1 skrev
jonas.t...@gmail.com:
> Den tisdagen den 29:e oktober 2013 kl. 19:09:03 UTC+1 skrev Neil Cerutti:
>
> > On 2013-10-29, jonas.thornv...@gmail.com wrote:
>
> >
>
> > > I have a 25 row javascript that i try to convert to python to get into
> > > the language but i run into problem i do not understand howto reach outer
> > > loop after finnish inner loop, in fact i do not understand when finished.
> > > The javascript i try to conver is below.
>
> >
>
> > >
>
> >
>
> > > #!/usr/bin/python
>
> >
>
> > > import math
>
> >
>
> > > # Function definition is here
>
> >
>
> > > def sq(number):
>
> >
>
> > >
>
> >
>
> > >square=1;
>
> >
>
> > >factor=2;
>
> >
>
> > >exponent=2;
>
> >
>
> > >print(x,"= ");
>
> >
>
> > >while (number>3):
>
> >
>
> > > while (square<=number):
>
> >
>
> > >factor+=1;
>
> >
>
> > >square=math.pow(factor,exponent);
>
> >
>
> > >now i want to add conter when loop finished, no end like basic
>
> >
>
> > >??? factor--;
>
> >
>
> > >??? print(factor," ");
>
> >
>
> > >??? square=math.pow(factor,exponent);
>
> >
>
> > >??? number=number-(factor*factor);
>
> >
>
> > >??? square=1;
>
> >
>
> > >??? factor=1;
>
> >
>
> > >---here does second loop finish
>
> >
>
> > > return
>
> >
>
> > >
>
> >
>
> > > print("Exp=x^2");
>
> >
>
> > > for x in range (22,23):
>
> >
>
> > > sq(x);
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > > Here is the javascript with loop i try to convert.
>
> >
>
> >
>
> >
>
> > Output:
>
> >
>
> > 7 = 2 + 3
>
> >
>
> > number square factor exponent
>
> >
>
> > 7 1 2 2
>
> >
>
> > 9 3
>
> >
>
> > 3 1 1
>
> >
>
> >
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > >TEST
>
> >
>
> > >
>
> >
>
> > > function sq(number){
>
> >
>
> > >square=1;
>
> >
>
> > >factor=2;
>
> >
>
> > >exponent=2;
>
> >
>
> > >document.write(x,"= ");
>
> >
>
> > >while (number>3) {
>
> >
>
> > > while (square<=number) {
>
> >
>
> > >factor++;
>
> >
>
> > >square=Math.pow(factor,exponent);
>
> >
>
> > > }
>
> >
>
> > > factor--;
>
> >
>
> > > document.write(factor," ");
>
> >
>
> > > square=Math.pow(factor,exponent);
>
> >
>
> > > number=number-(factor*factor);
>
> >
>
> > > square=1;
>
> >
>
> > > factor=1;
>
> >
>
> > > }
>
> >
>
> > > document.write("+",number,"
");
>
> >
>
> > > }
>
> >
>
> > > document.write("Exp=x^2
");
>
> >
>
> > > for (x=1;x<100;x++){
>
> >
>
> > > sq(x);
>
> >
>
> > > }
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> >
>
> >
>
> > What on does function sq do? Squank? Squarp? Squijel?
>
> >
>
> >
>
> >
>
> > For number 7, I'm thinking I get output:
>
> >
>
> >
>
> >
>
> > 7 = 2 + 3
>
> >
>
> >
>
> >
>
> > --
>
> >
>
> > Neil Cerutti
>
>
>
> It write out numbers on modular? square form, just copy past the HTML
> embedded javascript into text, save as HTML run i brower and you see.
>
>
>
> Decimal base
>
> 1234=1000+200+30+4 i bad at terminiology but let us call modular base 10 form.
>
>
>
> The script convert to modular square form number and write out.
>
> 1234= 35 3 +0
>
> 35^2 + 3^3 = 1225 + 9 =1234
>
>
>
> It is very basic
And it work for any exponential form square, cubic etc. I want to implement in
python since javascript lack bignumb, and diskread write function.
Exp=x^2
77= 88191 353 26 3 +2
Exp=x^3
77= 1981 153 33 10 4 3 3 +4
Exp=x^4
77= 296 100 33 12 9 5 4 3 3 2 2 2 +12
Exp=x^5
77= 95 33 15 9 6 5 5 3 3 2 2 +9
Exp=x^6
77= 44 28 18 13 9 7 6 5 5 4 3 3 3 3 2 2 2 2 2 2 2 2 +64
Exp=x^7
77= 25 20 16 14 11 7 5 4 3 3 3 2 2 2 2 2 2 2 2 2 2 +128
Exp=x^8
77= 17 12 11 10 9 7 7 6 5 5 5 4 4 4 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2
2 +33
Exp=x^9
77= 12 11 8 7 7 7 5 5 4 4 4 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 +510
Exp=x^10
77= 9 9 7 7 6 6 6 5 5 5 5 5 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 2 2 2 2
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2 2 2 2 2 2 2 +502
Exp=x^11
Here is code for doing it for any exponent.
TEST
function sq(number,exponent){
exp=1;
factor=2;
multip=Math.pow(2,exponent);
document.write(x,"= ");
while (number>multip){
while (exp<=number)
{ factor++;
exp=Math.pow(factor,exponent);
}
factor--;
document.write(factor," ");
exp=Math.pow(factor,exponent);
number=number-Math.pow(factor,exponent);
exp=1;
factor=1;
}
document.write("+",number,"
");
Re: Help with guessing game :D
On Tuesday, 29 October 2013 18:27:41 UTC, ru...@yahoo.com wrote:
> On Tuesday, October 29, 2013 11:45:56 AM UTC-6, Robert Gonda wrote:
>
> > Thank you very much for your reply, however it gives me an error,
>
> > something about the "end", do you know whats wrong with it?
>
> > (Still not sure if im posting this right so sorry)
>
>
>
> "...an error, something about the 'end'" is not much to go on. :-)
>
>
>
> Most of the time, when there is an error in a python program,
>
> Python will print "traceback" error message. When asking for
>
> help please copy and paste those lines in your post. Without
>
> that it is just a guessing game for anyone to try and figure
>
> out what is wrong.
>
>
>
> Did perhaps your traceback message look like this?
>
>
>
> File "xx3.py", line 28
>
> print ("digits matched: ", end='')
>
> ^
>
>
>
> If so, you are running your program with python2, not python3.
>
> So you need to either figure out how to run python3 (does entering
>
> the command "python3" do anything?) or change the program to work
>
> with python2.
>
>
>
> If the error message was different than above, you need to post
>
> it here if people are to have any chance of helping you figure
>
> out what is wrong.
> It says that there is an error in this program and something about invalid
> syntax, should i perhaps redownload it?
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 18:35:56 UTC, Robert Gonda wrote:
> On Tuesday, 29 October 2013 18:27:41 UTC, ru...@yahoo.com wrote:
>
> > On Tuesday, October 29, 2013 11:45:56 AM UTC-6, Robert Gonda wrote:
>
> >
>
> > > Thank you very much for your reply, however it gives me an error,
>
> >
>
> > > something about the "end", do you know whats wrong with it?
>
> >
>
> > > (Still not sure if im posting this right so sorry)
>
> >
>
> >
>
> >
>
> > "...an error, something about the 'end'" is not much to go on. :-)
>
> >
>
> >
>
> >
>
> > Most of the time, when there is an error in a python program,
>
> >
>
> > Python will print "traceback" error message. When asking for
>
> >
>
> > help please copy and paste those lines in your post. Without
>
> >
>
> > that it is just a guessing game for anyone to try and figure
>
> >
>
> > out what is wrong.
>
> >
>
> >
>
> >
>
> > Did perhaps your traceback message look like this?
>
> >
>
> >
>
> >
>
> > File "xx3.py", line 28
>
> >
>
> > print ("digits matched: ", end='')
>
> >
>
> > ^
>
> >
>
> >
>
> >
>
> > If so, you are running your program with python2, not python3.
>
> >
>
> > So you need to either figure out how to run python3 (does entering
>
> >
>
> > the command "python3" do anything?) or change the program to work
>
> >
>
> > with python2.
>
> >
>
> >
>
> >
>
> > If the error message was different than above, you need to post
>
> >
>
> > it here if people are to have any chance of helping you figure
>
> >
>
> > out what is wrong.
>
>
>
> > It says that there is an error in this program and something about invalid
> > syntax, should i perhaps redownload it?
> never mind you was right, for some reason I had version 2.7 :/ , and btw I
> was wondering, is it also possible to make it more complex? such as if the
> computer will again show “Y” if a digit is correct but if a digit is
> incorrect it will say "H" as in too high or “L” if it's too low? (while still
> keeping "Y"). Do tell me if it sounds confusing :/
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On 29/10/2013 14:05, Robert Gonda wrote: & >> Back to question, name is also not working, I currently have python 3.3.2 and the only to get that work is the write raw_input, I have no idea why, did i do soemthing wrong? Why did you add those two >> symbols in front of your new text? Each such symbol is supposed to indicate that another level of quoting is occuring. So when I saw your message, I first concluded that you sent a blank reply. (I also added another character in front of it, so you'd see it. Apparently googlegroups messes up your view of things in order to cover up its bugs in posting. As for your question. Yes, you did something wrong. You thoroughly underspecified the phrase "not working." When you run a program and it gets an exception, read the whole traceback. And when you want help here, copy the WHOLE TRACEBACk. If raw_input() is working without an exception, then you are NOT running Python3.x. Figure that out first, perhaps by sticking these two lines at the beginning of your code: import sys print(sys.version) -- DaveA -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 19:09:01 UTC, Dave Angel wrote: > On 29/10/2013 14:05, Robert Gonda wrote: > > > > > > & >> Back to question, name is also not working, I currently have > > python 3.3.2 and the only to get that work is the write raw_input, I > > have no idea why, did i do soemthing wrong? > > > > > > Why did you add those two >> symbols in front of your new text? Each > > such symbol is supposed to indicate that another level of quoting is > > occuring. So when I saw your message, I first concluded that you sent a > > blank reply. > > > > (I also added another character in front of it, so you'd see it. > > Apparently googlegroups messes up your view of things in order to cover > > up its bugs in posting. > > > > As for your question. Yes, you did something wrong. You thoroughly > > underspecified the phrase "not working." > > > > When you run a program and it gets an exception, read the whole > > traceback. And when you want help here, copy the WHOLE TRACEBACk. > > > > If raw_input() is working without an exception, then you are NOT running > > Python3.x. Figure that out first, perhaps by sticking these two lines > > at the beginning of your code: > > > > import sys > > print(sys.version) > > > > > > > > -- > > DaveA >Hi dave, yes you was right. I had python 2.7 but I upgraded to python 3 now, >thanks for help :) by the way, is this showing normally? -- https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
Le mardi 29 octobre 2013 16:52:49 UTC+1, Tim Chase a écrit :
> On 2013-10-29 08:38, wxjmfa...@gmail.com wrote:
>
> > >>> import timeit
>
> > >>> timeit.timeit("a = 'hundred'; 'x' in a")
>
> > 0.12621293837694095
>
> > >>> timeit.timeit("a = 'hundreij'; 'x' in a")
>
> > 0.26411553466961735
>
>
>
> That reads to me as "If things were purely UCS4 internally, Python
>
> would normally take 0.264... seconds to execute this test, but core
>
> devs managed to optimize a particular (lower 127 ASCII characters
>
> only) case so that it runs in less than half the time."
>
>
>
> Is this not what you intended to demonstrate? 'cuz that sounds
>
> like a pretty awesome optimization to me.
>
>
>
> -tkc
That's very naive. In fact, what happens is just the opposite.
The "best case" with the FSR is worst than the "worst case"
without the FSR.
And this is just without counting the effect that this poor
Python is spending its time in switching from one internal
representation to one another, without forgetting the fact
that this has to be tested every time.
The more unicode manipulations one applies, the more time
it demands.
Two tasks, that come in my mind: re and normalization.
It's very interesting to observe what happens when one
normalizes latin text and polytonic Greek text, both with
plenty of diactrics.
Something different, based on my previous example.
What a European user is supposed to think, when she/he
sees, she/he can be "penalized" by such an amount,
simply by using non ascii characters for a product
which is supposed to be "unicode compliant" ?
jmf
--
https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
On 29/10/2013 14:35, jonas.thornv...@gmail.com wrote:
(Deleting hundreds of quad-spaced garbage. Please be more considerate
of others if you choose to use buggy googlegroups, maybe starting by
studying:
)
Please indent by 4 columns, not 1. Since indentation is how scope is
specified in Python, it's very important to get it right.
> i do not understand howto reach outer loop after finnish inner loop, in fact
> i do not understand when finished.
The inner loop is finished whenever you stop indenting by 8 columns. If
you have a fundamental problem like this, keep it simple till you
understand it:
q = 12
for x in range(10):
for y in range(3):
q = 3*q + 1
print("inner", q)
print("outer", x*q)
print("done")
Because of the detenting, the print("outer", x*q) is in the outer loop.
--
DaveA
--
https://mail.python.org/mailman/listinfo/python-list
Re: Organising packages/modules - importing functions from a common.py in a separate directory?
Hi, Wait - err, subpackage != module, right? Do you think you could explain what a sub-package is please? I tried Googling, and couldn't seem to find the term in this context. Also, so you're saying to put the actual script that I want to invoke *outside* the Python package. Do you mean something like this: > sync_em.py > sync_pg.py > foo_loading/ > __init__.py > common/ > common_foo.py > em_load/ > __init__.py > config.yaml > em.py > pg_load/ > __init__.py > config.yaml > pg.py and the sync_em.py and sync_pg.py would just be thin wrappers pulling in things from em.py and pg.py? Is that a recommended approach to organise the code? Would it make any difference if I actually packaged it up so you could install it in site-packages? Could I then call modules from other modules within the package? Cheers, Victor On Tuesday, 29 October 2013 18:44:47 UTC+11, Peter Otten wrote: > Victor Hooi wrote: > > > > > Hi, > > > > > > Hmm, this post on SO seems to suggest that importing from another sibling > > > directory in a package ins't actually possibly in Python without some ugly > > > hacks? > > > > > > http://stackoverflow.com/questions/6323860/sibling-package-imports > > > > > > Did I read the above correctly? > > > > Yes. > > > > > Is there another way I can structure my code so that I can run the > > > sync_em.py and sync_pg.py scripts, and they can pull common functions from > > > somewhere? > > > > The packages you are trying to access in your original post > > > > > foo_loading/ > > > __init__.py > > > common/ > > > common_foo.py > > > em_load/ > > > __init__.py > > > config.yaml > > > sync_em.py > > > pg_load/ > > > __init__.py > > > config.yaml > > > sync_pg.py > > > > > > aren't actually siblings in the sense of the stackoverflow topic above, they > > are subpackages of foo_loading, and as you already found out > > > > > So from within the sync_em.py script, I'm trying to import a function from > > foo_loading/common/common_foo.py. > > > > > > from ..common.common_foo import setup_foo_logging > > > > > > I get the error: > > > > > > ValueError: Attempted relative import in non-package > > > > > > If I change directories to the parent of "foo_loading", then run > > > > > > python -m foo_loading.em_load.sync_em sync_em.py > > > > > > it works. However, this seems a bit roundabout, and I suspect I'm not > > doing things correctly. > > > > > > Ideally, I want a user to be able to just run sync_em.py from it's own > > directory, and have it correctly import the logging/config modules from > > common_foo.py, and just work. > > > > > > What is the correct way to achieve this? > > > > you can access them as long as the *parent* directory of foo_loading is in > > sys.path through PYTHONPATH, or as the working directory, or any other > > means. However, if you step into the package, e. g. > > > > $ cd foo_loading > > $ python -c 'import common' > > > > then from Python's point of view 'common' is a toplevel package rather than > > the intended 'foo_loading.common', and intra-package imports will break. > > > > To preserve your sanity I therefore recommend that you > > > > (1) avoid to put package directories into sys.path > > (1a) avoid to cd into a package > > (2) put scripts you plan to invoke directly rather than import outside the > > package. -- https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
On 29/10/2013 19:16, wxjmfa...@gmail.com wrote:
Le mardi 29 octobre 2013 16:52:49 UTC+1, Tim Chase a écrit :
On 2013-10-29 08:38, wxjmfa...@gmail.com wrote:
import timeit
timeit.timeit("a = 'hundred'; 'x' in a")
0.12621293837694095
timeit.timeit("a = 'hundreij'; 'x' in a")
0.26411553466961735
That reads to me as "If things were purely UCS4 internally, Python
would normally take 0.264... seconds to execute this test, but core
devs managed to optimize a particular (lower 127 ASCII characters
only) case so that it runs in less than half the time."
Is this not what you intended to demonstrate? 'cuz that sounds
like a pretty awesome optimization to me.
-tkc
That's very naive. In fact, what happens is just the opposite.
The "best case" with the FSR is worst than the "worst case"
without the FSR.
And this is just without counting the effect that this poor
Python is spending its time in switching from one internal
representation to one another, without forgetting the fact
that this has to be tested every time.
The more unicode manipulations one applies, the more time
it demands.
Two tasks, that come in my mind: re and normalization.
It's very interesting to observe what happens when one
normalizes latin text and polytonic Greek text, both with
plenty of diactrics.
Something different, based on my previous example.
What a European user is supposed to think, when she/he
sees, she/he can be "penalized" by such an amount,
simply by using non ascii characters for a product
which is supposed to be "unicode compliant" ?
jmf
Please provide hard evidence to support your claims or stop posting this
ridiculous nonsense. Give us real world problems that can be reported
on the bug tracker, investigated and resolved.
--
Python is the second best programming language in the world.
But the best has yet to be invented. Christian Tismer
Mark Lawrence
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 1:03:00 PM UTC-6, Robert Gonda wrote:
> never mind you was right, for some reason I had version 2.7 :/ ,
> and btw I was wondering, is it also possible to make it more
> complex? such as if the computer will again show “Y” if a digit
> is correct but if a digit is incorrect it will say "H" as in
> too high or “L” if it's too low? (while still keeping "Y").
> Do tell me if it sounds confusing :/
Sure it's possible. What do you think would happen if you
replaced the code that compares the digits and prints Y or
N with with something like this?
if guess_str[i] > number_str[i]: print ("H", end='')
if guess_str[i] < number_str[i]: print ("L", end='')
if guess_str[i] == number_str[i]: print ("Y", end='')
(you are comparing 1-character long strings containing a
digit between "0" and "9" but they will compare the same
way numbers do.)
--
https://mail.python.org/mailman/listinfo/python-list
Re: Possibly better loop construct, also labels+goto important and on the fly compiler idea.
On Tuesday, October 29, 2013 8:08:16 AM UTC-6, Steven D'Aprano wrote: > On Tue, 29 Oct 2013 12:37:36 +0100, Skybuck Flying wrote: >[...] > Skybuck, please excuse my question, but have you ever done any > programming at all? You don't seem to have any experience with actual > programming languages. >[...] > Wait until you actually start programming before deciding what makes > sense or doesn't. Couldn't you have simply made your points without the above comments? Those points stand perfectly fine on their own without the ad hominem attack. -- https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
Den tisdagen den 29:e oktober 2013 kl. 20:24:57 UTC+1 skrev Dave Angel:
> On 29/10/2013 14:35, jonas.thornv...@gmail.com wrote:
>
>
>
> (Deleting hundreds of quad-spaced garbage. Please be more considerate
>
> of others if you choose to use buggy googlegroups, maybe starting by
>
> studying:
>
>
>
> )
>
>
>
> Please indent by 4 columns, not 1. Since indentation is how scope is
>
> specified in Python, it's very important to get it right.
>
>
>
> > i do not understand howto reach outer loop after finnish inner loop, in
> > fact i do not understand when finished.
>
>
>
> The inner loop is finished whenever you stop indenting by 8 columns. If
>
> you have a fundamental problem like this, keep it simple till you
>
> understand it:
>
>
>
>
>
> q = 12
>
> for x in range(10):
>
> for y in range(3):
>
> q = 3*q + 1
>
> print("inner", q)
>
> print("outer", x*q)
>
>
>
> print("done")
>
>
>
> Because of the detenting, the print("outer", x*q) is in the outer loop.
>
>
>
>
>
> --
>
> DaveA
Why did Python not implement end... The end is really not necessary for the
programming language it can be excluded, but it is a courtesy to the programmer
and could easily be transformed to indents automaticly, that is removed before
the compiliation/interpretation of code.
Got the script working though :D, good start. It seem though that Python
automaticly add linebreaks after printout. Is there a way to not have print
command change line? Or must i build up a string/strings for later printout?
#!/usr/bin/python
import math
# Function definition is here
def sq(number):
square=1;
factor=2;
exponent=2;
print(x,"= ");
while (number>3):
while (square<=number):
factor+=1;
square=math.pow(factor,exponent);
factor-=1;
print(factor,"^2");
square=math.pow(factor,exponent);
number=number-(factor*factor);
square=1;
factor=1;
print("+",number);
return
print("Exp=x^2");
for x in range (21,22):
sq(x);
--
https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, 29 October 2013 19:55:13 UTC, ru...@yahoo.com wrote:
> On Tuesday, October 29, 2013 1:03:00 PM UTC-6, Robert Gonda wrote:
>
> > never mind you was right, for some reason I had version 2.7 :/ ,
>
> > and btw I was wondering, is it also possible to make it more
>
> > complex? such as if the computer will again show “Y” if a digit
>
> > is correct but if a digit is incorrect it will say "H" as in
>
> > too high or “L” if it's too low? (while still keeping "Y").
>
> > Do tell me if it sounds confusing :/
>
>
>
> Sure it's possible. What do you think would happen if you
>
> replaced the code that compares the digits and prints Y or
>
> N with with something like this?
>
>
>
> if guess_str[i] > number_str[i]: print ("H", end='')
>
> if guess_str[i] < number_str[i]: print ("L", end='')
>
> if guess_str[i] == number_str[i]: print ("Y", end='')
>
>
>
> (you are comparing 1-character long strings containing a
>
> digit between "0" and "9" but they will compare the same
>
> way numbers do.)
>So your saying that it doesn't matter what "rule" I add it will work for as
>long as I add it to that line? (or replace?)
--
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Re: First day beginner to python, add to counter after nested loop
Den tisdagen den 29:e oktober 2013 kl. 21:08:39 UTC+1 skrev
jonas.t...@gmail.com:
> Den tisdagen den 29:e oktober 2013 kl. 20:24:57 UTC+1 skrev Dave Angel:
>
> > On 29/10/2013 14:35, jonas.thornv...@gmail.com wrote:
>
> >
>
> >
>
> >
>
> > (Deleting hundreds of quad-spaced garbage. Please be more considerate
>
> >
>
> > of others if you choose to use buggy googlegroups, maybe starting by
>
> >
>
> > studying:
>
> >
>
> >
>
> >
>
> > )
>
> >
>
> >
>
> >
>
> > Please indent by 4 columns, not 1. Since indentation is how scope is
>
> >
>
> > specified in Python, it's very important to get it right.
>
> >
>
> >
>
> >
>
> > > i do not understand howto reach outer loop after finnish inner loop, in
> > > fact i do not understand when finished.
>
> >
>
> >
>
> >
>
> > The inner loop is finished whenever you stop indenting by 8 columns. If
>
> >
>
> > you have a fundamental problem like this, keep it simple till you
>
> >
>
> > understand it:
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > q = 12
>
> >
>
> > for x in range(10):
>
> >
>
> > for y in range(3):
>
> >
>
> > q = 3*q + 1
>
> >
>
> > print("inner", q)
>
> >
>
> > print("outer", x*q)
>
> >
>
> >
>
> >
>
> > print("done")
>
> >
>
> >
>
> >
>
> > Because of the detenting, the print("outer", x*q) is in the outer loop.
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > --
>
> >
>
> > DaveA
>
>
>
>
>
> Why did Python not implement end... The end is really not necessary for the
> programming language it can be excluded, but it is a courtesy to the
> programmer and could easily be transformed to indents automaticly, that is
> removed before the compiliation/interpretation of code.
>
>
>
> Got the script working though :D, good start. It seem though that Python
> automaticly add linebreaks after printout. Is there a way to not have print
> command change line? Or must i build up a string/strings for later printout?
>
>
>
> #!/usr/bin/python
>
> import math
>
> # Function definition is here
>
> def sq(number):
>
>
>
> square=1;
>
> factor=2;
>
> exponent=2;
>
> print(x,"= ");
>
> while (number>3):
>
> while (square<=number):
>
> factor+=1;
>
> square=math.pow(factor,exponent);
>
> factor-=1;
>
> print(factor,"^2");
>
> square=math.pow(factor,exponent);
>
> number=number-(factor*factor);
>
> square=1;
>
> factor=1;
>
> print("+",number);
>
> return
>
>
>
> print("Exp=x^2");
>
> for x in range (21,22):
>
> sq(x);
They could had used print and prinln from basic? I do not want new line
everytime i write out some terms. And i do not like it add extra space after
each print of variable print(factor,"^2") writes out 12 ^2 and i do not think
there is any space after the factor?
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Re: Help with guessing game :D
On Tuesday, 29 October 2013 19:55:13 UTC, ru...@yahoo.com wrote:
> On Tuesday, October 29, 2013 1:03:00 PM UTC-6, Robert Gonda wrote:
>
> > never mind you was right, for some reason I had version 2.7 :/ ,
>
> > and btw I was wondering, is it also possible to make it more
>
> > complex? such as if the computer will again show “Y” if a digit
>
> > is correct but if a digit is incorrect it will say "H" as in
>
> > too high or “L” if it's too low? (while still keeping "Y").
>
> > Do tell me if it sounds confusing :/
>
>
>
> Sure it's possible. What do you think would happen if you
>
> replaced the code that compares the digits and prints Y or
>
> N with with something like this?
>
>
>
> if guess_str[i] > number_str[i]: print ("H", end='')
>
> if guess_str[i] < number_str[i]: print ("L", end='')
>
> if guess_str[i] == number_str[i]: print ("Y", end='')
>
>
>
> (you are comparing 1-character long strings containing a
>
> digit between "0" and "9" but they will compare the same
>
> way numbers do.)
> Is it possible to further more specify it? H only shows if the guess is at
> most 3 higher then the answer?. But L is only given if the guess is at most 3
> lower the answer? I'm starting to like this ;D
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Re: First day beginner to python, add to counter after nested loop
On 2013-10-29, jonas.thornv...@gmail.com
wrote:
> Got the script working though :D, good start. It seem though
> that Python automaticly add linebreaks after printout. Is there
> a way to not have print command change line? Or must i build up
> a string/strings for later printout?
print takes an keyword argument, called end, that defaults to
"\n". You can provide something else:
print("xzzz", end="")
> #!/usr/bin/python
> import math
> # Function definition is here
> def sq(number):
> square=1;
Get in the habit of not using the semicolon to end lines. Python
doesn't need them, except when two statements appear without a
newline between them.
> factor=2;
> exponent=2;
> print(x,"= ");
That ought to be
print(number, "= ", end="")
There's no need to refer to global x when you've passed it in as
number.
> while (number>3):
> while (square<=number):
> factor+=1;
> square=math.pow(factor,exponent);
You don't want to use math.pow. Just use pow or the ** operator.
square = factor**exponent
> factor-=1;
> print(factor,"^2");
> square=math.pow(factor,exponent);
> number=number-(factor*factor);
Analogous with factor += 1, you can do
number -= factor * factor
Note the usual spacing of python operators and identifiers.
> square=1;
> factor=1;
> print("+",number);
> return
A bare return at the end of a Python function is not needed. All
functions return None if they fall off the end.
--
Neil Cerutti
--
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Re: First day beginner to python, add to counter after nested loop
On 29/10/2013 20:11, jonas.thornv...@gmail.com wrote: I do not want new line everytime i write out some terms. I wish you'd apply that thinking to your posts. -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
On 10/29/13 4:08 PM, jonas.thornv...@gmail.com wrote: Why did Python not implement end... The end is really not necessary for the programming language it can be excluded, but it is a courtesy to the programmer and could easily be transformed to indents automaticly, that is removed before the compiliation/interpretation of code. If you're going to indent your code correctly anyway, then the "end"s are just extra noise. And if you aren't going to indent your code to match the structure, then you have two different channels of information: the human pays attention to the indentation, and the computer pays attention to the ends. That's a recipe for creating lots of subtle bugs. You get used to reading the indentation. They could had used print and prinln from basic? I do not want new line everytime i write out some terms. And i do not like it add extra space after each print of variable print(factor,"^2") writes out 12 ^2 and i do not think there is any space after the factor? The print statement is very simple, and has not had a lot of features added to it, because you very quickly outgrow it anyway. If you want fine control over the output of your program, you use string formatting, for example with the .format() method on strings. --Ned. -- https://mail.python.org/mailman/listinfo/python-list
personal library
Hello list, Python has been a hobby for me since version 1.5.2. Over the years I accumulated quite a lot of reusable code. It is nicely organised in modules, directories and subdirectories. With every project, the library grows and is developed further. I would like to ask your advice for two problems: For most projects I use python's most recent, stable release. Obviously, some 3rd party libraries still do not support Python3 (like wx) and I will use 2.7. Does this mean I should maintain seperate libraries for 2 and 3, or can this be done easier? I do like new language features! How do I arrange that I can access the most recent version of my library on every computer in my home network? Development is usually on my desktop, sometimes on my laptop, and of course I use python for maintenance tasks on other computers in the house (e.g. The children's). I now have the library on a network share and local copies on each computer, but of course I forget to synchronise often enough. As said, python is a hobby, and the solution should be as lightweight as possible! I'm usually on windows (vista, xp or 7). Thanks! -- patrick -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On Tuesday, October 29, 2013 2:21:08 PM UTC-6, Robert Gonda wrote: > Is it possible to further more specify it? H only shows if the > guess is at most 3 higher then the answer?. But L is only given > if the guess is at most 3 lower the answer? I'm starting to > like this ;D To do that, you'll need to convert the string digits back to numbers that you can do arithmetic on. The int() function can do that. Then you can do something like if guess_num > number_num + 3: ... print what you want here. You'll find you get more and better answers to your questions if you attempt to do something yourself and when you find it is not doing what you want, post here saying what you tried, what it did, and how what it did is different from what you want. You'll also get better responses if you edit out the empty and excess ">" lines in the quoted text of your replies, which you are still not doing. -- https://mail.python.org/mailman/listinfo/python-list
Using urlparse.parse_qs() - first element in dict is keyed on URL+key, instead of just key?
Hi,
I'm attempting to use urlparse.parse_qs() to parse the following url:
https://www.foo.com/cat/dog-13?utm_source=foo1043c&utm_medium=email&utm_campaign=ba^Cn=HC
However, when I attempt to parse it, I get:
{'https://www.foo.com/cat/dog-13?utm_source': ['foo1043c'],
'utm_campaign': ['ba^Cn=HC'],
'utm_medium': ['email']}
For some reason - the utm_source doesn't appear to have been extracted
correctly, and it's keying the result on the url plus utm_source, rather than
just 'utm_source'?
Cheers,
Victor
--
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Re: Using urlparse.parse_qs() - first element in dict is keyed on URL+key, instead of just key?
Hi,
My bad - PEBKAC - didn't read the docs properly.
I need to use urlparse.urlparse() to extract the query first.
So for anybody searching this, you can use something liek:
In [39]: url
Out[39]:
'https://www.foo.com/cat/dog-13?utm_source=foo1043c&utm_medium=email&utm_campaign=ba^Cn=HC'
In [40]: urlparse.parse_qs(urlparse.urlparse(url).query)
Out[40]:
{'utm_campaign': ['ba^Cn=HC'],
'utm_medium': ['email'],
'utm_source': ['foo1043c']}
Cheers,
Victor
On Wednesday, 30 October 2013 09:34:15 UTC+11, Victor Hooi wrote:
> Hi,
>
>
>
> I'm attempting to use urlparse.parse_qs() to parse the following url:
>
>
>
>
> https://www.foo.com/cat/dog-13?utm_source=foo1043c&utm_medium=email&utm_campaign=ba^Cn=HC
>
>
>
> However, when I attempt to parse it, I get:
>
>
>
> {'https://www.foo.com/cat/dog-13?utm_source': ['foo1043c'],
>
> 'utm_campaign': ['ba^Cn=HC'],
>
> 'utm_medium': ['email']}
>
>
>
> For some reason - the utm_source doesn't appear to have been extracted
> correctly, and it's keying the result on the url plus utm_source, rather than
> just 'utm_source'?
>
>
>
> Cheers,
>
> Victor
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Re: stacked decorators and consolidating
Tim Chase wrote: I'd have figured they would be associative, making the result end up the same either way, but apparently not. They're not associative because function application is not associative: f(g(x)) is not the same thing as f(g)(x). -- Greg -- https://mail.python.org/mailman/listinfo/python-list
Re: First day beginner to python, add to counter after nested loop
Neil Cerutti wrote: Get in the habit of not using the semicolon to end lines. Also, you don't need to put parentheses around the conditions of while and if statements. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
xlutils 1.7.0 released!
Hi All,
I'm pleased to announce the release of xlutils 1.7.0:
http://pypi.python.org/pypi/xlutils/1.7.0
This release features a handy new view module that lets you do things like:
>>> def print_data(rows):
... for row in rows:
... for value in row:
... print value,
... print
>>> from xlutils.view import View, Row, Col
>>> print_data(view['Sheet1'][:2, :1])
R0C0
R1C0
>>> print_data(view['Sheet1'][Row(1):Row(2), Col('A'):Col('B')])
R0C0 R0C1
R1C0 R1C1
There's also some help for values that are dates or times:
>>> for row in View(join(test_files,'date.xls'))[0]:
... for value in row:
... print repr(value)
datetime.datetime(2012, 4, 13, 0, 0)
Please have a play and let me know what you think.
Full docs here:
http://pythonhosted.org/xlutils/
Details of all things Python and Excel related can be found here:
http://www.python-excel.org/
cheers,
Chris
--
Simplistix - Content Management, Batch Processing & Python Consulting
- http://www.simplistix.co.uk
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Looking For Advice
Hey Guys, A group of guys and myself have been working on a project/business plan to develop a Hotel Concierge application for tablets. We have been working on it for over a year and have hotels here in Chicago that are on board and very interested with our concept. We also are in the works with some large APIs as well as some contracts with some large APIs that want to work with us. Recently our developer had to drop out of the group because he became too busy with his other projects and we have been at a standstill for a couple of weeks. Can anyone provide me some direction on where to find start looking for another developer or if this sounds like an interesting venture and you would like more information please contact me at crclemen...@gmail.com. I appreciate any help you can offer. -- https://mail.python.org/mailman/listinfo/python-list
mush 1.0 released! - Type-based dependency injection for scripts
Hi All, I'm very happy to announce the first public release of Mush, a light weight dependency injection framework aimed at enabling the easy testing and re-use of chunks of code that make up scripts. For a worked example of how to use Mush to reduce the copy'n'paste in your scripts, please see here: http://pythonhosted.org/mush/examples.html Full docs are here: http://pythonhosted.org/mush/ Downloads are here: https://pypi.python.org/pypi/mush Compatible with Python 2.6, 2.7, 3.2 and 3.3 on Linux, Mac OS X and Windows: http://jenkins.simplistix.co.uk/view/mush/ Any problems, please give me a shout on the simplis...@googlegroups.com list! cheers, Chris -- Simplistix - Content Management, Batch Processing & Python Consulting - http://www.simplistix.co.uk -- https://mail.python.org/mailman/listinfo/python-list
Re: how to avoid checking the same condition repeatedly ?
Chris said : "Want some examples of what costs no clarity to reimplement in another language? Check out the Python standard library. Some of that is implemented in C (in CPython) and some in Python, and you can't tell and needn't care which." To ME (a consumer of the CPython library) there is zero cost to clarity. To the angels that maintain/develop this library and need to go inside the black box regularly there is a non-zero cost to clarity. Right? (I'd rather run the risk of stating the obvious than missing something clever, that's why I keep hitting this sessile equine). -- https://mail.python.org/mailman/listinfo/python-list
Mail client wrapping
I am receiving lines like this: Accordingly, this element has largely given way in modern cases to a less = rigid formulation: that the evidence eliminates, to a sufficient degree, = other responsible causes (including the conduct of the plaintiff and third= parties). For example, in New York State, the defendant's exclusivity of = control must be such that the likelihood of injury was, more likely than = not, the result of the defendant's negligence. I want the original: Accordingly, this element has largely given way in modern cases to a less rigid formulation: that the evidence eliminates, to a sufficient degree, other responsible causes (including the conduct of the plaintiff and third parties). For example, in New York State, the defendant's exclusivity of control must be such that the likelihood of injury was, more likely than not, the result of the defendant's negligence. I know I can create a new list and iterate over the input lines, but was wondering if there is a one-liner lurking in here? -- https://mail.python.org/mailman/listinfo/python-list
Re: Mail client wrapping
The mail message is encoded. You will have a header like this: Content-Transfer-Encoding: quoted-printable If you are processing email messages you should investigate Python's email module. http://docs.python.org/2/library/email Skip On Tue, Oct 29, 2013 at 7:36 PM, Jason Friedman wrote: > I am receiving lines like this: > > Accordingly, this element has largely given way in modern cases to a less = > rigid formulation: that the evidence eliminates, to a sufficient degree, = > other responsible causes (including the conduct of the plaintiff and third= > parties). For example, in New York State, the defendant's exclusivity of = > control must be such that the likelihood of injury was, more likely than = > not, the result of the defendant's negligence. > > I want the original: > > Accordingly, this element has largely given way in modern cases to a less > rigid formulation: that the evidence eliminates, to a sufficient degree, > other responsible causes (including the conduct of the plaintiff and third > parties). For example, in New York State, the defendant's exclusivity of > control must be such that the likelihood of injury was, more likely than > not, the result of the defendant's negligence. > > I know I can create a new list and iterate over the input lines, but was > wondering if there is a one-liner lurking in here? > > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
Using "with open(filename, 'ab'):" and calling code only if the file is new?
Hi, I have a CSV file that I will repeatedly appending to. I'm using the following to open the file: with open(self.full_path, 'r') as input, open(self.output_csv, 'ab') as output: fieldnames = (...) csv_writer = DictWriter(output, filednames) # Call csv_writer.writeheader() if file is new. csv_writer.writerows(my_dict) I'm wondering what's the best way of calling writeheader() only if the file is new? My understanding is that I don't want to use os.path.exist(), since that opens me up to race conditions. I'm guessing I can't use try-except with IOError, since the open(..., 'ab') will work whether the file exists or not. Is there another way I can execute code only if the file is new? Cheers, Victor -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with guessing game :D
On 29/10/2013 15:15, Robert Gonda wrote: (once again deleting all the double-spaced Googlegroups nonsense) > && >>Hi dave, yes you was right. I had python 2.7 but I upgraded to python 3 now, thanks for help :) by the way, is this showing normally? No, you're still adding a ">" character before the stuff you typed. That's supposed to show what you are quoting. One bracket is the person you're replying to, two marks the stuff he was quoting, and so on. Any decent mail program does it for you automatically, or with minimum configuration. Only googlegroups messes it up so consistently. -- DaveA -- https://mail.python.org/mailman/listinfo/python-list
Re: trying to strip out non ascii.. or rather convert non ascii
Mark Lawrence writes: > Please provide hard evidence to support your claims or stop posting this > ridiculous nonsense. Give us real world problems that can be reported > on the bug tracker, investigated and resolved. I think it is much better just to ignore this nonsense instead of asking for evidence you know you will never get. -- Piet van Oostrum WWW: http://pietvanoostrum.com/ PGP key: [8DAE142BE17999C4] -- https://mail.python.org/mailman/listinfo/python-list
Re: how to avoid checking the same condition repeatedly ?
On 28/10/2013 7:50 PM, Wolfgang Maier wrote: imagine you have a flag set somewhere earlier in your code, e.g., needs_processing = True then in a for loop you're processing the elements of an iterable, but the kind of processing depends on the flag, e.g.,: for elem in iterable: if needs_processing: pre_process(elem) # reformat elem in place print(elem) this checks the condition every time through the for loop, even though there is no chance for needs_processing to change inside the loop, which does not look very efficient. There are two approaches I would consider using here: 1. Make pre_process a decorator, and outside of the loop do: def pre_process_decorator(fn): def pre_process(x): # functionality goes here return fn(x) return pre_process if needs_processing: print = pre_process_decorator(print) for elem in iterable: print(elem) 2. Replace the iterable with a generator if the condition is met: if needs_processing: iterable = (pre_process(x) for x in iterable) for elem in iterable: print(elem) Personally, I find the 2nd approach clearer. -- https://mail.python.org/mailman/listinfo/python-list
RE: Using "with open(filename, 'ab'):" and calling code only if the file is new?
> with open(self.full_path, 'r') as input, open(self.output_csv, 'ab') as > output: > fieldnames = (...) > csv_writer = DictWriter(output, filednames) > # Call csv_writer.writeheader() if file is new. > csv_writer.writerows(my_dict) > > I'm wondering what's the best way of calling writeheader() only if the file is > new? > > My understanding is that I don't want to use os.path.exist(), since that opens > me up to race conditions. What stops you from checking before and setting a flag? -- https://mail.python.org/mailman/listinfo/python-list
